good morning, i'm dr. sanjay gupta, welcome. first up, this woman, diana nyad, her goal is to make a world record swim. she's going to make an announcement to make it to us. christina applegate, first a breast cancer survivor, now a baby on the way.

what she thinks insurance companies could do to save your lives. 33 miners rescued. what are they going to face now? let's get started. diana nyad barely missed the olympics in 1968. she didn't give up. she took on a new challenge, long distance swimming. she did 103 miles. she swam nearly 42 hours. she got back in the water, the following summer. to this day, she holds the record for the longest ocean swim without a shark cage. now, she's still at it. training to go back and break her own record and swim from

cuba to key west. i'm so delighted you are here. i meet people in my life that inspire me. i'm not going to embarrass you, again, but you are an inspiring. i'm glad you are here. >> thank you, sanjay. >> you have big announcements to make. >> the progression, it had been some time since the days of my 20st. hadn't swam for 30 years. laster, i decided to train for cuba. the mystique was still in my heart. trained for a year. got ready. really ready. i could walk through brick walls, knew i could do it. government permission, winds coming from the wrong direction, a feeling of helplessness. i have been, you know, up against a wall against it. now, we have had to postpone it all the way to next summer. feels like an eternity. i know it will seem like a short

time once we get back to organizing. >> for sure next summer. >> for sure. july. >> you mentioned the winds, the temperature, the water. what made it now -- >> the water temperatures. i need mid-80s. people can say that's like a bath, come on. it's 77 now. way too cold. i was doing four-hour swims last week and i was in shivers by the end of four hours. what are you going to do after 60 hours. they are rough seas, i don't like it. the hours could go longer. we say 60 hours. if my trainer says sorry, we recal cueuated it's going to be 80 hours. i'm tough, i'll go. >> what is it that the mental toughness, you know, you said this to me before. anybody can prepare for this sort of thing, but there's a mental toughness you have. what are you thinking about when

you are swimming for that long? >> well, you know, it ranges. you go into really sort of deep philosophical thoughts, you really do, about life and the meaning of life and what you are doing with your life and the mystery of the universe. then you are swimming along singing bob dylan songs to get through the hours. the high of it has a life metaphor. it's the commitment. if i'm going from this short to that short and i don't care what happens in between. i don't care if i cry in pain of the shoulder, i'm staying in. having to break down this crew now and wait until next summer because of the helplessness of waiting for the weather to change has been more difficult than the whole training. >> they are part of your family. >> yeah. yeah. >> one thing that comes up a lot. you don't swim with a shark

cage. >> yeah. >> what you are going to see is they are going to chum the water and see what happens with the sharks. no surprise here. that's a chummed line, sharks going right after it. >> yeah. they are taking the bait. okay. >> now, they are going to use an electric probe, they are going to electrically charge an area around the chum. see what happens. same chum, electrical line. sharks aren't getting anywhere near it. >> i love this video. >> you have not seen this before. this is important. this is the type of technology that could protect you. >> i'm sure what they use for this, i don't know if it's exact electricity we use. we have a device. it's a shark shield. divers use it. they wrap it around their arms. there's a kayak next to me and they duct tape it. it sends out a field of electricity. it's the first time i have seen it in video. thank you.

thank you. >> it's necessary to try to keep -- we wish you the best of luck. we are going to be there with you next summer. >> thank you, look forward to it. >> also, an embryonic stem cell is under way now. used to treat spinal cord injuries. now, an important moment. the first miner stepped out of the rescue capsule. incredible story. a story of success. stay with us. fiber one chewy bar. how'd you do that? do what? it tastes too good to be fiber. you made it taste like chocolate. it has 35% of your daily value of fiber. do it again. turn it into something tasty. this guy's doing magic. there's chocolate chips in here now. how'd you do that? right! tasty fiber, that's a good one!

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conditions. they spent more than two months in conditions the human body doesn't designed for. it was the overall planning of the rescue and the types of food the men have been given that made the process so successful. it's likely they will be under psychological condition. we have been with the story for a long time. we are not going anywhere. we are going to stay on it here on sgmd. 12 years after the first human embryonic stem cells were isolated, the first person is injected from a product der rived. the company is not revealing a lot about the patient, but he or she was thought to have been paralyzed less than two weeks. this is amazing stuff. the trial is to determine

whether or not this therapy is safe for humans. you can bet we are going to stay on that story as well. another story that made headlines, there's a spiraling problem with prescription medications. there's a new treatment. they gave their blessing to a medication called vivitral. it's a new form of an old drug. there's reason to think it's going to work much, much better. we wanted to better sense of it. take a look. t.j. grew up around cars. it was the family business. >> a '71 chevelle. >> six years ago, his life went off the road. at age 23, he got hooked on painkillers. >> i was on a fast track to being on no track what so ever. >> it all slipped away. he sold the cars, one-by-one for

pennies on the dollar. then his father died and he hit rock bottom. all he could think about were the drugs. >> that's the biggest thing. you get cravings and your mind becomes solely focused on the next fix. >> it's not that he didn't try. he was in and out of detox programs ten times. nothing worked. a doctor tried a monthly shot that blocks his desire to get high. >> i said i'll try anything. if it works for 30 days, we'll go from there. i was skeptical. but, within the first day of getting my injection. the cravings literally went away. they were nonexistent. >> it's vivitrol.

>> the majority of narcotic addicts will simply stop taking the drug and bail out of treatment and go another way. >> this is a monthly shot. he says that's a huge difference. >> i wasn't at a place where i could take a medication once daily on my own. the nice part of the this is, i get an injection once a month. i don't have to worry about it. >> he's back at school and work and back in the garage. >> it was four years ago today my dad passed. he would be proud of me. >> this is not a cure all. it's going to be used with therapy and counseling. now that it's approved specifically for narcotics, insurance companies are more likely to pay and it could become more widely used. up next, christina applegate. she's from the long-running series "married with children."

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we are back with christina applegate. she's a cancer survivor and a mother-to-be. she's speaking out about how she

detected the breast cancer. she was diligent about getting screened. she began regular mammograms at age 30. that wasn't the test she believe saved her life. >> it wasn't until i was 35, almost 36 that my -- the doctor i had been getting my mammograms from said it's time to start doing mris because of the density and ability to see what's going on. luckily for me, he found on the mri the calcifications through the biopsy found it was cancer. >> you were very proactive. >> yeah. i know how fast -- to know in three months this appeared on a test. this is, for me, not something you wait. i think -- i think it's irresponsible for me to say to go with the first doctors that you hear about. it's irresponsible to say that. i'm kind of that way. i need it now. i think it's important to

research who you are dealing with and what surgeons you are going to. >> right. >> in the past, you decided not to get the genetic testing. you decided to get it at this point now. >> i did. my oncologist said i think it's beneficial for you, looking at your history and your family, i think you should know. it might change how you look at all this. she was pushing for, you know, doing a ma sectmy at that time. when i got the test back that i was positive for the mutation, we had to sit down and have that conversation. i was really resistant. i was so resistant of the idea of a ma sectmy. having watched my mom go through it and what it did to her mo mentally. i just can't want to do that.

i can't. then i looked at these statistics. i did my own research on it. who knows. we don't know what's going on there, but just to see, sort of the recurrence rate is so high. i just couldn't sit with that, for me. >> what you are describing is something happening right now, somewhere in america, a woman is going through making this tough decision. you can't want to have it at all. after all the data came back and you looked at it and talked to your doctor, you decided it was the best thing to do. >> for me. i know i have gotten some criticism, i'm sure from people who said what i have done was way too radical. i looked at my family and i just thought this is the smartest thing for me to do. this is my best chance of not having to deal with this ever again for as long as i live. that's what i knew and had to do

for myself. >> any regrets about the operation? do you ever look back and say maybe it was, you know, i acted hastily or too quickly or anything?

>> any refwrets about the operation? do you ever look back and say i acted hastily or too quickly or anything? >> when my head goes into vanity sometimes i go, darn it, i miss

those gals but then it's closely followed by this is about your life and, you know, what's the sacrifice of that for being able to watch this one grow up and have children of their own. that's what's really important to me. >> did your doctors and you have a conversation? you are a woman of child bearing age. it's one of the things that doctors always ask. i think i mentioned i have three kids. it's amazing that there's a push it seems for women to nurse. obviously children, you know, can drink formula. there's a lot of ways to get nutrition. was that part of the conversation at all? >> no. if you ask any of our parents from my generation, they didn't nurse. i mean, for maybe a week i think we all turned out pretty okay. i respect the thought form that you must do this but you look at a generation ago and they were

quickly onto something else. i think it will be okay. >> i think it was two or three weeks and my mom was back to work. >> my mom was maybe a month. i don't recall remember nursing you at all. there you go. we're very bonded. she's the closest person i have to me in my life. >> one of the things i hear all the time as a doctor is that you doctors order too many tests. you order tests for everything. and this has been part of the reason there's been a hesitation or a slow to sort of act as far as ordering more mris for breast cancer. what do you say to people that say we're a culture of over testing as it is. >> it saved my life. i had a mammogram and there was nothing on it. this found it at a stage where its was curable instead of a stage that was not. a lot of insurance companies don't cover mri screenings which

is why i started my foundation. it upset me so much that these women were opting to not have this really valuable screening because of money and because we're not taking care of these women who are high risk. that's one of the things that really got me when i was going through all of this. >> should insurance companies be hearing what you have to say? >> absolutely this should be a part of it. mris should be be in tandem with mammography. until then with right action for women we'll provide financial aid to these women. >> thanks so much for sharing your story. i think this is really important. i was excited to speak with you. the jury is still out a bit on exactly how it will play out with screening. when people like you speak and you hear that an mri saved your life but they are expensive and maybe time for them to be cheaper and more widely available. >> that would be nice.

i love what my foundation is about to do but if they could make it so we don't have to work so hard, that would be -- >> put you out of business. >> i would love that. i would love nothing more than to have all of the breast cancer organizations to have to close their doors because we don't have to have this as part of it anymore. it's a dream. >> that's well said. thanks. appreciate it. so smart and compassionate on this. her foundation is providing funding so women at high risk of breast cancer can afford to get mri and genetic testing if needed. find out how to apply and make a donation at rightactionforwomen.org. will eating carrots improve your eyesight? ask the doctor is next.

welcome back. it's time to answer your questions. favorite part of the show for me. here is one from anna beth in dayton, ohio. are carrots actually good for your eyes or is that just a mom's tale? great question. carrots are rich in maintaining your strong eyesight but if your vision wasn't 20/20 to begin with, that won't help your vision improve. something happens in your eyes

around age 50. people start to notice a decline in their eyesight. nearly 10 million americans experience something known as macular degeneration when the tissue surrounding the retina deteriorates and that causes a blurry spot in the middle of vision. experts have pinpointed certain foods rich in omega3's that could reduce inflammation in the eye and keep arteries and blood vessels healthy. the way to think about it, the same thing that protects the eye also protects your heart. when you think about your foods, you want to do both. a study out last year showed specifics. eating fish once a week, reduces your risk by 31%. other foods. nuts decrease by 35% and look at this one.