sanjay gupta. as happened many times for you sanjay you went there as a journalist. foremost a doctor you did have to lay your hands on somebody to try to make a difference. what's the situation? >> reporter: exactly right, chris, when you are in these situations oftentimes there is a greater demand for care than there is supply. whether it be resources, personnel? and that's the case here as well. you can get a little of an idea. we are in the sort of dry area of a building that wasn't actually functioning at the hospital. this has become a hospital because there has been such tremendous demand. you can see people who are lined up. there have been ambulances that have come in from time to time. taxicabs. there was an 8-year-old girl who needed an operation. there was just such demand 40 to 50 neurosurgical patients in this particular area. mr. of them outside. i don't know if you can see this. ethey gave permission to show this scan here. take a quick look a. this is a cat scan it's a big plus and over here just this may be more than you can see. but that white area

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go to cnn.com and read sanjay's op-ped on this. >>> ahead of that we've got this for you.arijuana. up next e-joints a new discreet way some folks are getting high. i'm caridee. i've had moderate to severe plaque psoriasis most my life. but that hasn't stopped me from modeling. my doctor told me about stelara®. it helps keep my skin clearer. with only 4 doses a year after 2 starter doses... ... stelara® helps me be in season. stelara® may lower your ability to fight infections and increase your risk of infections. some serious infections require hospitalization. before starting stelara®... ...your doctor should test for tuberculosis. stelara® may increase your risk of cancer. always tell your doctor if you have any sign of infection, have had cancer, or if you develop any new skin growths. do not take stelara® if you are allergic to stelara® or any of its ingredients. alert your doctor of new or worsening problems including headaches, seizures, confusion and vision problems- these may be signs of a rare, potentially fatal brain condition. serious allergic reactions can occu

sanjay gupta. i'd heard about those interviews there on capitol hill with senators booker and gillibrand. you have that as part of this. then you have you causing a bit of a stir here with your cnn opinion piece saying yes, indeed, we should be legalizing medical marijuana. how did you get there? >> well i think it's a medicine brooke. i think it's something that can help people. i think it's a medicine that not only works, but it often works when nothing else has. i think there are people who have suffered needlessly because of the concerns about abuse, but in the crosshair, people have just been denied a very viable option for them to alleviate their pain and suffering. it's easy to do nothing, as i wrote in that op-ed. it's easy to play it safe on this issue. once you two outgo out and look at the data much of it from countries outside the united states and you meet the patients it changed my mind. i think it's something that needs to be available to everybody. >> i know there has been such a de

sanjay gupta joins me now from atlanta. hi sanjay.e no studies that show that marijuana is effective in dealing with depression and suicidal thoughts? >> part of the reason we showed that and introduced you to that veteran is because that's the state of affairs right now. people are given all these medications. many of them don't work. he was suicidal overdosed on the mainstream medications and turned to this as a last resort. the position he's in is it's trial and error for him. he has to try different things and figure out what's going to work and what doses are. we know more about the fact that as an adult that the concern is not so much the impact on the brain. there is a concern about impact on adolescent brain but just how well does it work and how do you maximize its -- that ethicacy. we just don't know that yet. that's what they're trying to do is get this topic and this medicine studied. >> so is any research on that aspect of marijuana under way? >> that's one of the exciting things about this new documentary. the science re

sanjay gupta explores health issues and around the world. "vital signs" starts right now. >>> we all want it. we all need it. and most of us don't get enough of it. today we're talking about the one thing that impacts everyone, no matter where you live or what you do. and that is sleep. this is "vital signs." i'm dr. sanjay gupta. we spend one-third of our lives asleep. that's roughly 25 years of shut-eye. yet sleep is anything but a waste of time. it's a critical component of our health, and it deserves to be taken seriously. when your head hits the pillow, your body doesn't shut down. it uses that time to heal tissue, to strengthen memory, even grow. so what happens when you don't or you can't get enough sleep? it's a problem for too many of us, and one that can affect our every waking hour. think about it for a minute. how do you sleep at night? there's so much to learn about how we sleep that impacts how we live. glenn keller certainly appreciates the value of sleep. he's a long-haul truck driver and his livelihood, his life depend on hi

sanjay gupta is joining us live from kathmandu. he's just back from a tent city where reporters have not been before. sanjay, this is devastating. thank you so much for being there. tell us what you've seen? >> i'll tell you we were inside one of the busiest hospitals in the city center called bear hospital a hospital the takes care of some of the most urgent trm ma cases in the city. even for them this is a situation that they had not encountered before even though they take care of a lot of trauma patients yesterday or twos days ago now, right immediately after the earthquake they were quite busy as expected. there was a little bit of a lull afterwards they told me but what happened is that was probably during the time that the rescue missions were taking place and they basically got a deluge of patients again today that was quite remarkable even while we were few minutes after we arrived, ambulances taxis, people walking in being carried in. it was extraordinary, wolf. most of the injuries crush injuries brain injuries spine inj

sanjay joins me now. all right, sanjay. so, here's your platform. well, when something is a scheduled one substance in this country where marijuana is right now, essentially deeming it illegal saying it is the drug of highest abuse in this country and no accepted medical benefit. that just is not the way marijuana should be treated. be rescheduling it, making it legal, making it scheduled to substance, you're essentially acknowledging what i think everyone already knows. it does have some accepted medicinal use. how far, widespread, how much impact those medicinal uses will be. that's why some of the studies are being done. but to basically say it should be scheduled higher than cocaine, which is where it is right now, it is a lack of common sense. so, that is the position. this is a substance that has some medicinal use, should be studied and treated like any other medication. >> well, let's talk about what's happening in georgia because the governor nathan bill just legalizes the use of cannabis oil. what is your take on that? >> i think it's an i

sanjay gupta is in kathmandu.surgical skills to this medical crisis and joins me now by phone. tell us more, sanjay. >> it's as you described it. you have a tremendous demand for care. in the immediate aftermath of the earthquake obviously high demand. there was a lull after that. the doctors, nurse, the administrators at these hospitals thought maybe the worst was over at this point. what we now know is the rescue missions ongoing in some of the more remote areas were going to bring patients back. over the day-to-day you had a dramatic increase in patients care again and demand that goes with that in terms of personnel and resources. all of that. it supplies like gloves and latex gloves and scrubs for surgeons to do operations but also infrastructure. generators that make these hospitals work are gasoline powered so they are trying to be judicious about the use of those generators. that's the picture. they don't know what comes next. do numbers go up? is there a lull again? there's a lot of unknowns, carol. >> i

sanjay excellent work as usual.s pieces of marijuana legislation. why is that? >> well effectively, it would legalize med izeize medicinal marijuana. schedule one means there's no accepted me disdicinal us use. schedule two says there there is medicinal use. that's a big deal wolf. it would free up dollars for more federal research, allowing veterans administration hospital doctors to preskribcribe this medication for veterans. there's a big posttraumatic stress veterans and marijuana study that is starting up now. so these are big, sweeping things. nothing this big has happened if in the last 40 50 years, wolf. >> who else would be most impacted if this were to pass? >> well, you know, there's a lot of patients who are going to enter these trials. over the last few documentaries you've met some of them. first of all, i should say these patients are at this pointtypically patients who have already tried everything that is out there to be offered to them. children with epilepsy people with chronic pain people who hav

sanjay gupta. sanjay, the co-pilot was prescribed what has been called and i quote heavy depressive medicine that had been very heavy on the body. what types of effect would these kinds of medicines have? >> well, when you talk about medications that are treating depression, sometimes they can make someone sleepy. they can be sedating but also have nearly the opposite effect, wolf. somebody who's very depressed, they are given a powerful antidepressant. sometimes, if they are bipolar, for example, it can sort of make them become more the sort of manic side of things. there are so many details about this whole story that are still unclear and frankly, the pieces coming in still don't make sense in aggregate. you feel there's pieces missing but a heavy antidepressant would have one of those effects, wolf. >> possibly could have been under the influence of this medication when he actually crashed the plane? >> it's possible, but again, you know, when you hear some of the interactions, it doesn't sound

sanjay gupta.rain surgeon and here's his report. >> thousands were killed during the initial quake. without urgent medical care, many thousands more will likely die. >> we've made our way into one of the busiest hospitals in kathmandu. this is actually a lobby area. this is normally a lobby area. you get an idea how chaotic the scene is over here. this area over here, they've simply set up just for people with brain injuries, spinal cord injuries. it's very challenging. they don't have enough monitors. you can see over here, they actually are doing some procedures right at the bedside because there's not enough operating room capabilities. >> operations performed right in the hospital lobby. this facility so overwhelmed, dozens of patients are forced to wait outside until medical personnel can give them care. >> nearly two days after the earthquake, we're at the busiest hospital in this particular area. emergency vehicles keep coming in. we have patients either being rescued, finally found, finally

sanjay gupta thank you so much. the hospital scramble to save the living rescuers are finding new signs of life amid the rubble. the work is gruelling, painstaking and often heartbreaking. earlier on cnn international we heard from one trekking guide who joined the rescue effort in kathmandu. >> this is one of the main squares, the palace squares in kathmandu which attracts a lot of tourists. these are all very old structures hundreds of years old, and it's completely gone down. but initial efforts they brought in the excavator to dig out as many bodies today we've been digging with our hands and trying to find out more survivors. behind that temple over there is another very famous structure, which is completely down. there are suspicions that there are people underneath. we've been trying to get them to cry for help and we've been digging along trying to rescue them out. >> have you come across -- have you found any survivors? >> well today itself they pulled out at least two or three bodies from towards my left.

sanjay gupta on why he is so passionate about getting medical marijuana legalized in america. >>> 21 minutes past the hour, and so good to see you. a majority of americans polled said they favor the legalization of medical marijuana. take a look. >> i never thought i would be smoking weed in the hospital. >> this is san francisco general. an academic teaching hospital that because of dr. abrams has a stash of marijuana in their pharmacy. it is stored next to all the other medications. abrams is using it to see if it can relieve chronic pain in patients with a rare blood disorder. janellea is a painter, and she was born with sick annual cell anemia, and has been in pain for as long as she can remember. she says marijuana makes her nearly pain free. >> how long after you smoke do you have a relief of your pain? >> instantly. it's, like, instant. a couple minutes after you feel the relief of pain. >> sanjay shared why he is so passionate about legalizing medical marijuana. listen to this. >> we know there are accepted medical uses of marijuana, and i think what made it more person for m

sanjay gupta, cnn, reporting. >> our thanks to dr.jay gupta for that report. >>> coming up next a shock for airline passengers on one flight over the weekend after a fist fight reportedly broke out between the captain and the co-pilot in the cockpit. what's the airline have to say about it today? quiet! mom has a headache! had a headache! but now, i...don't. excedrin® is fast. in fact for some, relief starts in just 15 minutes. excedrin®. wow, that was fast. toenail fungus? don't hide it... tackle it with fda-approved jublia! jublia is a prescription medicine proven to treat toenail fungus. use jublia as instructed by your doctor. once applied jublia gets to the site of infection by going under, around and through the nail. most common side effects include ingrown toenail, application-site redness itching, swelling, burning or stinging, blisters, and pain. tackle it! ask your doctor now if jublia is right for you. new york state is reinventing how we do business by leading the way on tax cuts. we cut the rates on personal income taxes

sanjay's "weed 3" is on sunday at 9:00. >>> good evening.ernandez downward spiral from nfl star to convicted killer. we just learned what he said just moments after a jury found him guilty of murder and the judge handed down a life sentence. we begin, though tonight with breaking news, the unlikely story behind the incredible site that gripped washington today. a

sanjay gupta, there's so much more of sanjay's reporting go to cnn.com. phenomenal work you're doing there. thank you for taking the time. the land skach nepal is forever changed. the before, the after images show just a slice of what this massive 7.8 earthquake did to this country. they are just another example of how difficult it is to find people in the chaos of this post-quake chaos. last hour i spoke to a man whose father is missing somewhere around mt. everest in a park. i asked him what it's like not monthing where his dad is and if he's okay. >> it's very trying. but also is a reason to be optimistic because we know it's going to be impossible to get communications out. we're very optimistic. >> maybe no news is good news piece. >> yeah. news of people who have been unaccounted for is trickling in. we haven't heard about my dad or dili yet. we're optimistic that dili may have decided that once things started to hunker down and wait a few days. at the same time we're away that there are some dangers. >> we have nick valencia who in decatur, georgia

sanjay gupta joins me now. sanjay, thanks for joining us.octors know very little about the benefits of medical marijuana? >> reporter: well part of the reason we wanted to show that clip is because that is the reality for a lot of folks. the answer to your question is, yes. but keep in mind when you look at the story of a veteran like sean kernen high-functioning guy, banker, four children, he's married. this whole life and he has these terrible symptoms of posttraumatic stress, nothing's worked for him, jake. he's gone through all the medications that the doctors prescribed for him. not only do they not work he overdosed, nearly died from trying to get better. so, yeah, we need more research. need to figure out what strains, what doses. for him, it's a lot of trial and error right now. that's been the point all along. these things should be studied like any other medicine would be studied. >> but as you note weed cannot be used for clinical use. how can researchers get their hands on marijuana to study it as you suggest? >> reporter: well t

. >>> come up, things are changing when it comes to marijuana and sanjay will talk next. is filled with air. but for people with copd sometimes breathing air can be difficult. if you have copd, ask your doctor about once-daily anoro ellipta. it helps people with copd breathe better for a full 24hours. anoro ellipta is the first fda-approved product containing two long-acting bronchodilators in one inhaler. anoro is not for asthma. anoro contains a type of medicine that increases risk of death in people with asthma. it is not known if this risk is increased in copd. anoro won't replace rescue inhalers for sudden copd symptoms and should not be used more than once a day. tell your doctor if you have a heart condition, or high blood pressure. tell your doctor if you have glaucoma, prostate or bladder problems, or problems passing urine as anoro may make these problems worse. call your doctor right away if you have worsened breathing chest pain, swelling of your mouth or tongue, problems urinating or eye problems including vision changes or eye pain while taking anoro. nothin

sanjay gupta's special investigation into medicinal marijuana, "weed 3" airs tonight.m., the series "high profits." all these networks keep making different claims. it gets confusing. fastest, the strongest the most in-your-face-est. it sounds like some weird multiple choice test. yea, but do i pick a, b, or c. for me it's all of the above. i pick, like the best of everything. verizon. i didn't. i picked a. maybe c. and how'd that work out for you? not so well. can i get a do-over? why settle for less when you can have, well, everything. and get 2 lines for $100. verizon. ♪ just because someone grows older does that mean they have to grow apart from their friends, or from the things they love to do? with right at home, it doesn't. right at home's professional team thoughtfully selects caregivers to help with personal care housekeeping, meals - and most of all, staying engaged - in life. oh, thank you, thank you. you're welcome. are you ready to go? oh, i sure am. we can provide the right care, right at home. >>> hello again, everyone. thanks for joining me. i'm frederi

sanjay gupta, cnn, kathmandu, nepal. >> all climbers stranded on mt.after the earthquake have been air lifted to safety. helicopter pilots took advantage of clear weather as you see here to pick up the climbers and guide. two at a time from the camps on the mountain. then bring them done to the base camp. the quake caused a massive avalanche which killed 17 people. th their body will arrive in kathmandu later today. >> back in kathmandu, heavy rain slowed recovery efforts tuesday. meteorologist ivan cabrera is tracking all of that and can join us now with the forecast ahead. what does it look like? >> big storm yesterday. we're kfcovering this, rolled through, behind me here. widening the shot. pushing to the east. back side. leftover showers. and developing south of the valley. hillside. southern here. as far as orginto issed steady, heavy rainfall. as far as the organized steady heavy rainfall. we're in good shape. 44 millimeters, fell in a short amount of time. we had concern of flooding out there. the airport picking up 3 millimeters. this its what

sanjay gupta visited a hospital is computing to empower cancer researchers. it used to take two weeks to sequence and analyze a genome; with the microsoft cloud we can analyze 100 per day. whatever i can do to help compute a cure for cancer, that's what i'd like to do. about data breaches in the news. more it's possible your personal information may be at risk. research shows that if your information is compromised due to a data breach, you are 6 times more likely to become a victim of identity theft. now is the time to get protection. sign up today and lifelock will begin monitoring your personal information, including your social security number, alert you about suspicious activity, and if needed, take steps to help restore your losses. you only have one identity. protect it with the best. lifelock. we want a spirited performance. who offers the most horsepower? lincoln mkc. we also want clever thinking in a tight spot. anyone offer hands-free in and out park assist? lincoln mkc. bra-vo. the lincoln luxury uncovered event is on. lease the mkc for $329 a mon

sanjay gupta talking rescued babies under rubble for over a day.just thislea recent one, 18-year-old man rescued after 80 hours. >> few and far between. you said there, the 18-year-old being rescued not too long ago. a glimmer of hope perhaps others will be found alive. derek van dam, thank you. >> desperation, fear, frustration, most that border on the miraculous. we were talking about this. we will bring you more on the ongoing search for survivors in earth quake-ravaged nepal. >> baltimore is under curfew after days of protest. soon we could learn more about the day that freddim. e gray died. more on that investigation after this. >>> welcome back to our viewers here in the u.s. and around the word. i'm errol barnett. your last half-hour of the day with me. let's get you up to speed on our top stories. in baltimore, a city wide curfew in effect. crowds were on the streets again wednesday, protests were painly peaceful. "the washington post" obtained a document that suggests freddie gray may have tried to injure himself in the police van after hi

sanjay gupta was there, you saw him speaking one-on-one with the president. sanjay joins us now.e. i've heard the president talk? somewhat personal ways about clng and the threat on personal health. he said his daughter malia suffered from asthma so he was acutely aware of situations that climate change can pose. what's the science linking climate change to health issues? >> that's a great question. it's where we started the interview yesterday as well. i think the best way to sort of characterize the science is still emerging. i mean one of the things you'll read often is that many doctors believe climate change is affecting their patients and that is happening now. but exactly in what ways i think is part of what they're still trying to define. you mentioned asthma they say asthma rates have doubled over the last three decades. the question just how much of that is due to climate change how much of that is due to other things. is not completely settled. but i think what people do agree on is that asthma worsening or exacerbations can happen because of climate change. because of

>> our thanks to sanjay.unday night at 9:00 eastern and pacific followed by the premiere of high profits here on cnn. we will be right back. when the moment's spontaneous, why pause to take a pill? or stop to find a bathroom? cialis for daily use is approved to treat both erectile dysfunction and the urinary symptoms of bph, like needing to go frequently, day or night. tell your doctor about all your medical conditions and medicines, and ask if your heart is healthy enough for sex. do not take cialis if you take nitrates for chest pain, as it may cause an unsafe drop in blood pressure. do not drink alcohol in excess. side effects may include headache, upset stomach, delayed backache or muscle ache. to avoid long-term injury, get medical help right away for an erection lasting more than four hours. if you have any sudden decrease or loss in hearing or vision, or any symptoms of an allergic reaction, stop taking cialis and get medical help right away. ask your doctor about cialis for daily use and a free 30-tab

sanjay he's great on television.cticing working neurosurgeon. >> and that comes first, before the story telling, that is what comes first for him always. >> we'll have more on that story for you tomorrow. meanwhile, the east coast could be getting soggy. let's get to meteorologist chad myers keeping track of the latest forecast for us. what are you seeing chad? >> hey, april showers, michaela. >> okay. >> summer's on its way. my son is ready to get out of school already. got to settle down. a couple more months to go. at least a month to go. scattered rain showers richmond down to charlottesville, even down across parts of atlanta yesterday. but that rain has moved away. it will move out into the ocean for the weekend. and nice beautiful week next week. i mean this really starts to ramp up. look at these temperatures from chicago into indianapolis into st. louis all the way into the 70s. in new york city d.c. 79 and 75. very very pleasant there. atlanta all the way almost up to 80 degrees. and here's what next week l

sanjay gupta, cnn. >>> top of the hour now. i'm brianna keilar in for brooke. we did not see in the cell phone video in the deadly encounter. the witness who captured final minutes of his life before officer slager fired on him. this is how it ended. we're going to warn you what we're about to show is graphic and disturbing. [

perhaps they were multi-tasking too much when they thought they were good at multi-tasking. >> sanjayivated him to do that piece because he doesn't multi-task, not at all. i'm paula newton. thanks for joining us. i'll be back with another hour of "cnn newsroom" right after of "cnn newsroom" right after this short break. -- captions by vitac -- www.vitac.com but a lot of us leave our identities unprotected. nearly half a million cars were stolen in 2012. but for every car stolen, 34 people had their identities stolen. identity thieves can steal your money, damage your credit, and wreak havoc on your life. why risk it when you can help protect yourself from identity theft with one call to lifelock, a leader in identity theft protection? lifelock actively patrols your sensitive, personal information, helping to guard your social security number, your bank accounts and credit, even the equity in your home. your valuable personal assets! look, your credit card company may alert you to suspicious activity on the accounts you have with them, but that still may leave you vulnerable to big los

sanjay gupta at a hospital in kathmandu.n a victim. >> reporter: cheers from the crowd of survivors continue to be pulled from the rubble this morning. nepal's tet toll rising into the thousands as millions suffer through the country's strongest earthquake in 80 years t. country now on the verge of a humanitarian crisis. >> now two days after the earthquake we find out how difficult it is in this area. emergency vehicles that agency that rescued and finally found a person in the traffic in the chaos to get to the hospital. damage and aftershocks hendering foreign aid and a lack of resources. >> reporter: this is sell na. she got here by ambulance. she

sanjay gupta, cnn, kathmandu, nepal. >> one thing we know from speaking with arwa damon moments age the has made search-and-rescue efforts difficult following the quake in nepal. landslides in many places. meteorologist jared van damme is watching the weather. what are you seeing? >> errol, mount etch rest has behas -- everest, the highly publicized area we focus on. and the tremors and the initial earthquake. what about the smaller villages and some of the other locations that people are still trapped there. we actually scan not get camera crews or any one to actually report from the regions. these particular locations have seen rainfall that caused more and more landslides. that's going to continue as we go forward in time. this is the satellite. not too active at the momentable. we have reporters on the ground. in fact we spoke with them recently. they had on and off again rainshowers. that's street to continue. in fact some of our computer models indicating anywhere, 30, 50 millimeters of rain. earlier this week, between a popular trekking area, between kathmandu, the national park

sanjay karki, thank you so much and all the best. the hope is great that more assistance will make its way in. >>> of course you can help the victims of the nepal earthquake. log on to cnn.com/impact for more information. i'm brian vickers, nascar® driver. i'm kevin nealon comedian. and i'm arnold palmer, professional golfer. know what we have in common? we talked to our doctors about treatment with xarelto®. me, when i had a blood clot in my leg that could have traveled to my lungs. that's why i took xarelto®, too. xarelto® is proven to treat and help reduce the risk of dvt and pe blood clots. i took xarelto® for afib... an irregular heartbeat that can lead to a stroke from a blood clot. xarelto® is proven to reduce the risk of stroke in people with afib, not caused by a heart valve problem. hey, well i'm glad we got together. for people with afib currently well managed on warfarin there is limited information on how xarelto® and warfarin compare in reducing the risk of stroke. i tried warfarin before, but the blood testing routine

the hearing is actually today where sanjay says he is testifying.ective, patrick cherry. he could be suspended for a period of time. he, like you said works for the joint terrorism task force. he could lose some clearance, among some other types of discipline. >> so uber gave a statement saying the behavior in the video was wrong, unacceptable. we appreciate the nypd investigating the incident. we are in touch with our driver/partner who was subjected to this terrible experience and will continue to provide whatever support he needs. the twitter account of sanjay seth, here's to a quick, fair and thorough resolution of this incident. have you heard from your sources about eye time linea time line? >> i haven't heard about a time line. after the ccrb makes a decision the discipline decision will ultimately be up to the nypd. >> we shall wait and see. this was trending and got everybody's attention. that's for sure. christopher mathias, huffington post reporter. thank you. >>> and governor mike pence on discrimination issues. >>> and a theme park in f

. >> sanjay thank you. sanjay's "weed 3" is on sunday at 9:00. >>> good evening. breaking news in aaron hernandez downward spiral from nfl star to convicted killer. we just learned what he said just moments after a jury found him guilty of murder and the judge handed down a life sentence. we begin, though tonight with breaking news, the unlikely story behind the incredible site that gripped washington today. a gyrocopter landing in at the capitol. 535 letters on board. now we would say most sensitive and carefully guarded airspace except that is evidently not true. this guy not only got inside the perimeter and something about his hi-tech as a flying lawn chair he wasn't even trying to sneaking in. doug hughes planned what he did for years. talked to his hometown newspaper about it. was even interviewed by the secret service back in october of 2013. the breaking news late this evening the secret service office in tampa denied reports they were given notice earlier today that the flight in fact was going to happen. in any case doug hughes was on the radar not just

michaela. >> sanjay thank you for that.smission was a little difficult, but it is important for us to see the ongoing efforts there. they will continue and we'll continue our coverage. >>> meanwhile, baltimore, a city on edge a state of emergency in effect. did a delayed response by police lead to the explosion of that violence? getting a law enforcement perspective next. we all eat foods that are acidic... we all have risk of acid erosion. there's only so much enamel, and everybody needs to do something about it now if they want to preserve their teeth. i recommend pronamel. it helps strengthen the tooth and makes it more resistant to acid breakdown. (mom) when our little girl was born we got a subaru. it's where she said her first word. (little girl) no! saw her first day of school. (little girl) bye bye! made a best friend forever. the back seat of my subaru is where she grew up. what? (announcer) the 2015 subaru forester (girl) what? (announcer) built to be there for your family. love. it's what makes a subaru a subaru.

sanjay gupta, cnn chief medical correspondent.g the types of injuries? >> reporter: well there's obviously a critical period happening right now, fred. people who can still be saved, people who can still be rescued. we're outside of this 72-hour period. the rescuers here know the likelihood of survival goes down after there. but there are still these rays of hope as you mentioned. and being here walking around some of these devastated villages you start to understand these people's stories, what their lives were like. take a look. we know the official death toll here in nepal went up by at least one today. neighbors watch from nearby windows, still clinging to hope. after all, this 4-month-old baby was rescued after more than 22 hours under the rubble alive with no apparent injuries. this man was buried for roughly 80 hours. rescue workers administered oxygen and an iv drip while they spent ten hours digging him out. there is hope everywhere you look and there are reminders of the people who once lived and breathed in this tiny vi

good morning, sanjay. >> good morning, carol. with climate change. i started off asking him about the science relating climate change to public health. that was one of the key issues. he's sort of reframing in some ways the whole discussion around climate change and global warming as a public health one. what is the impact on public health. he was in los angeles in 197899 in college. the air quality was so bad but there were measures that improved air quality. he saw asthma rates and respiratory diseases go down. the question is if they make some of those changes more nationwide could we have improvements of particularly these respiratory diseases. it's one of the things he's focused on. this is a larger plan. control carbon emissions. possibly improve people's health. it could take decades to see that improvement. that was his strong focus yesterday, carol. >> you also talked though about obamacare and what could happen if the u.s. supreme court knocks down a key provision in that law. what did the president say? >> you know i w

sanjay gupta, cnn, reporting. i've lived my whole life here in fairbanks, alaska. i love the outdoors, spending time with my family. i have a family history of prostate cancer. i had the test done and that was when i got the news. my wife and i looked at treatment options. cancer treatment centers of america kept coming up on the radar. so we flew to phoenix. greg progressed excellently. we proceeded to treat him with hormonal therapy, concurrent with intensity modulated radiation therapy to the prostate gland. go to cancercenter.com to learn more about our integrative therapies and how they're specifically designed to keep you strong mentally, physically and spiritually throughout your treatment. i feel great today, i'm healthy, i have never been in a happier place, i can't imagine being treated anyplace else. fighting cancer has given me opportunities to live. i think i chose extremely well. call or go to cancercenter.com. cancer treatment centers of america. care that never quits. appointments available now. something we do to show resolve. to defend ourselves.

sanjay gupta joins us by phone. is aspartame dangerous?it's been around a long time and there's been studies on this and impact on human health the big question people ask is does it cause cancer. there's no evidence that it causes cancer. there's been a concern recently about artificial sweeteners in general. two things. one, they may not actually help you lose weight as much as people think and in fact there are a couple studies that show that people who drink diet drinks regularly versus other drinks actually had no benefit in terms of weight loss. and the other thing is more of the impact on the body. people who drink a lot of these type of diet artificially sweetening drinks tend to still crave sugar. there's a possibility they need sugar because they're not getting it from diet sodas. in terms of overall health impact there really hasn't been evidence that shows that aspartame causes an impact on human health. >> it's replacing aspartame with another artificial sweetener. do you know what that is? >> it's a combination of chemicals.

sanjay gupta is back with his investigation into marijuana.s the journey of a veteran with ptsd who tried to commit suicide, failed and turned to marijuana at the last resort. >> i really came to the conclusion that it was really the medicine for him. >> it seemed very effective. >> it does seem very effective. >> for shawn it's trial and error. how much to use? when to use? or even the best strains? and how will it effect him long-term? that's why the studies are needed. >> how much does it concern you that there's not a lot of science behind this? >> if he wasn't doing this the fear is he wouldn't be here. so if there are some side effects we'll have to deal with down the road that haven't been studied yet, i figure we'll take that when it comes. . for now, the children have their father and husband with us. >> dr. sanjay gupta joins us. congrats to you and your team. let's talk about shawn. what was stunning to me is he struggled so much with ptsd he even tried to take his own life. he says marijuana has changed the way he thinks dreams con

sanjay gupta is looking is the benefits. you push button number one for me. >> it is the most exciting time i can think of for marijuana research. this is high times in marijuana research. it really is. >> what i need you to do is identify the number that is different, okay. >> harvard university dr. stacy gruber has been researching marijuana since the early 1990. they call her the pot doc. we met her two years ago when she was researching the possible damage of recreational marijuana to the brain. now she's also set her sites on the possible benefits of medical marijuana. massachusetts, as it turns out, is the perfect place for the study. because they just legalized medical marijuana. gruber's goal is to study new patients who have never used cannabis. >> our goal was to use at the folks before they started using medical marijuana and then three months in, six months in and a year. primarily to look at frontal executive functions because that is the big question. >> that question how does medical marijuana impact brain fun

sanjay gupta, and welcome to "vital signs".f you're like me, you want to know how do people live the longest? we decided to visit them where they live to try to learn. some of the answers you're going to find quite simple, but others will surprise you. >> to do bypass surgery is not sound unless you have a program you put them on. >> right. >> what's his name in new york, wrote the book -- >> oh, yes, oh, i know -- i'm blanking on name. >> campbell. >> that's right. impressive you remembered that and i did not. you're a hundred years old. >> well, i'll have to say this. i have noticed no deterioration in my mental ability with my age. >> that is remarkable. what do you attribute that to? >> well, i think it goes a long with your general health and i have to say this, i'm a heavy promoter of the vegan approach. >> yeah. >> dr. ellsworth follows an entirely plant based diet, and it appears to have served him well. he's 100 years old and in perfect health. in fact, he was a practicing heart surgeon until only five years ago. >> i

sanjay gupta, thanks so much. nation because we know the first series really did promote conversations and dialogue. >> i think so. thank you. >> all right, dr. sanjay gupta, special investigation into medical marijuana, "weed 3" airs tomorrow night at 9:00 p.m. eastern. immediately following that the premiere of cnn's new series "high profits," sunday night at 10:00 p.m. t-mobile is breaking the rules of wireless. and the samsung galaxy s6 edge is breaking the rules of design. can't get your hands on it because you're locked down by a carrier? break free t-mobile will pay every penny of your switching fees. get ahead of the curve and get your hands on the galaxy s6 edge for $0 down at t-mobile today. boy: once upon a time, there was a nice house that lived with a family. one day, it started to rain and rain. water got inside and ruined everybody's everythings. the house thought she let the family down. but the family just didn't think a flood could ever happen. the reality is floods do happen. protect what matter

what's the latest sanjay?er: alisyn we get a better idea as to why some people survive and why some people don't. obviously a lot of it has to do with where they go after they are rescued. are there medical facilities available? some of the most heartbreaking stories are people who are survived who have been saved but simply aren't getting to some of these hospitals or even makeshift clinics or o.r.'s quickly enough. that's an ongoing situation. but the person that you just mentioned, alisyn 80 hours, you know must have had a supply of oxygen obviously. some access to water or fluids of some sort. it's a remarkable story. you may have heard as well another remarkable story, a 4-month-old baby 4 months old, just remarkable. more than 22 hours we're hearing underneath the rubble. obviously unable to care for himself and yet survived. so this period is so critical right now. they say typically after about 72 hours the likelihood of someone surviving diminishes but doesn't go away completely. over the next couple

sanjay gupta, say it ain't so. we've been doing the wrong thing?f? >> taking tylenol for back pain has been something that's been recommended for years. part of clinical guidelines. back pain is one of the most common reasons people go to an urgent care clinic. it's a huge issue. we use billions of doses of tylenol every year. they looked at these studies, looked at three big studies and tried to figure out just howhow well it works? they found out it worked no better than a placebo. hardly no effect from tylenol. when you look at the studies the actual impact of tylenol seemed to be close toing ing intoto nothing. there are other side effects. risk-reward the conclusion is for back pain knee pain hip pain don't use tylenol. >> what are you supposed to use? >> look first of all we use a lot of pain relievers in this country. i will tell you that just a stat 80% of opioid usage is consumed in this country. we are 5% of the world's population we use 80% of the pain pills. my point is we jump to the pill pretty quickly. there are other options if a pi

i thought sanjay patel was first in the class.was until he missed a few weeks and the robot he was building attacked him. [ normal voice ] it's happening, people.

sanjay gupta explores health issues and around the world. "vital signs" starts right now. of it.'re talking about the one thing that impacts everyone no matter w

sanjay: well, there is a mix of everything. i think.ted raining late in the evening. that was bad because we have just one highway coming into it and onene -- into nepal international airway. coming in could be disturbed. right now the government and the agencies are estimating what the extent of the damages our and what the real needs on the mored are so this will be sure in the hours to come because now the weather has started improving. the last from her we felt was tremor wefrom her -- felt was at 6:00 in the morning. the immediate needs are coordinating between humanitarian agencies here, the government, and the private sector. working together collaboratively to meet immediate needs like shelter. and medications, medicine and all of that. rishaad: thank you so much. mercy corps joining us on the line from kathmandu. programhave a special on the earthquake later this morning, the human and economic costs and the aid effort getting underway, coming up at 11:30 hong kong and singapore time. 1:30 in sydney. nations are being urged to

sanjay great to see you, and thank you for explaining that.. when is your baby due? >> july 6th. >> yeah and dash is excited? >> he named her bubble gum. he is done with me and on to the next. >> yeah excited about his baby sister. what is your take on this topic? tweet us using #newdaycnn. and sanjay and i will do a live chat on the facebook page and you can tweet us or send in questions. >> our green room is hopping. look who i found. americans turn to you for years especially during the vietnam war, and you have a special documentary coming up that we will talk about through the lens of your former talk show. we have an anniversary, 40 years. >> makes us feel old. >> see you there. do you suffer from . . . the debilitating condition of jetlag? ♪ ♪ not in this room you don't. ♪ you got it booking right. booking.com booking.yeah. ortho bug b gon gives you season-long control of all these types of bugs. spectracide gives you season-long control... of just ants. their label says so. bugged by more than ants? get ortho bug b gon. the label tells