i'm eric shawn. time now for "sunday housecall." >> i'm arthel neville. joining us is dr. david samadi. >> and dr. marc siegel professor of medicine. he's the author of the inner pulse, unk locking the secret ce of sickness and health. >> we're going to start here, it's already available for use in the european union, canada and australia. so now a drug meant to help

patients dealing with the effects of multiple sclerosis has been approved for use right here at home. we may even know someone dealing with ms, can you explain to us what it is? >> it's the most common auto immune disease of central nervous system. what we really mean is that, you know, in the brain and spinal cord, we have a lot of nerves that connect with each other. if you decide to walk, if you decide to lift up a pen, a lot of mechanism that goes behind this to pass the signal. just like electrical cord, they have a sheathe around them. in ms, what happens is, our own body, autoimmune disease, the soldiers that are supposed to defend us, they go against us and attack these sheathes.

so what happens? all the message leaks out of our system so movements are not in sync. you have bladder spasm, bladder incontinen incontinence. you would have walking problems, visual issues. this was discovered and described in 1868. i was 2 years old at that time. a french guy, who was brilliant. he described it as multiple scars and then eventually became multiple sclerosis. we have treated this. there's no cure for this. we have treated with a lot of cheem therapeutic medications. something called lemtrada. it is used for treatment of leukemia, but now it's approved for this disease. it's antibodies that slows down

the immune system so it doesn't eat up those cells. a better treatment would be to use stem cells and prevent this from happening. if there are any companies that are working on this, i would love to hear from you. it's mostly used for relapse. unfortunately, it's not the biggest news we can bring to you. >> how do you know if you have it? >> it's another great imitator. it's actually hard to know if you have it. it can present with a lot of different things. usually the first stomach is a vision change. that's something that could really be multiple sclerosis. fatigue, spasm, tingling in fingertips and loss of sensation, very, very common with ms. it's an autoimmune disease. our own immune system is attacking our nerves.

prior to this, we used autoimmune treatments that stopped the immune system from targeting the nerve cells. what's interesting about lemtrada, it's a very targeted treatment that spots the immune cells from bearing right in on the nerves. 70% of the people tested went into full remission after a full year of treatment. very expensive, though. $150,000 for two treatments. >> and side effect. >> headache, nausea, vomiting and rash. >> i think a lot of patient with ms go on for a long time without correct diagnosis, how distinguish between that lupus and something like ms. >> and, you know, fibromyalgia

is actually hard to diagnose. lupus, you can check a blood test. ms, you look for damage to that sheathe. if they're dam damaged, you're going to see scars. if you see enough of them, a good neurologist will say this is ms. >> we're talking about this drug already in use, now it's coming here to the u.s. when will it be here and exactly what does it do for the patients. is it the same drug you just referenced that's so expensive? >> most insurances are going to cover it, i believe. the side effects or the issues why it wasn't approved about a year ago, this drug has come multiple times for approval in this country but it was rejected because of the side effects. what the company wants you to know is, it's not the first line of treatment. it's really for the people that

relapse. we're using some things, a lot of other medications for ms. if it doesn't work well, this would be a second backup and i think it's going to be available very soon. most of these autoimmune diseases are very hard. when you look at the mri, you look at the gray area and the white matter. it's the white matter that has a problem in this case because our system attacks it. it's a long process. usually this is between 15 and 45-year-old. the average is about 30. unless there's early treatment, the outcome is not so good. >> this may be controversial, what do you think about the whole medicinal marijuana treatment. >> very good question. of course i feel that can be overused. for ms, i think it can be quite effective. i do want to explain what relapsing is. that's the most common kind of multiple sclerosis.

you get an exacerbation. you get something like loss of vision, you get spasm, you get some weakness and then it comes back. so it's episodic. it progresses but then it comes back. you go into remission, but then it starts all over again. >> let me just say one quick thing about medical marijuana. i've always been against it. i think for very specific type of patients, under supervision of doctors, it may have some effect and it would work. the way medical marijuana is being done right now, everybody is basically sharing it with other friends, i think that really needs to be controlled. >> i agree. >> okay. >> all right. very good news today. well, there's eye-opening news about contact lens. you ever sleep with them accidentally in? do you neglect to always clean the solution? the biggest dos and don'ts for

contact lens wearers up next on "sunday housecall." .. ...heartburn. did someone say burn? try alka seltzer reliefchews. they work just as fast and are proven to taste better than tums smoothies assorted fruit. mmm... amazing. yeah, i get that a lot. alka seltzer heartburn reliefchews. enjoy the relief. because i make the best chicken noodle soup. because i make the best chicken noodle soup. because i make the best chicken noodle soup. for every way you make chicken noodle soup, make it delicious with swanson®. fifteen minutes could save you fifteen percent or more on car insurance. everybody knows that. well, did you know genies can be really literal? no. what is your wish? no...ok...a million bucks!

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and back now with "sunday housecall." do you wear contact lens? an estimated 38 million americans do. they say not everybody takes care of their contact lepzs the way we all should. that is causing a spike in the number of visits to the emergency room. i tried them once. i don't know -- you have to put them in, take them out, clean them, it goes on and on and on. >> i kcan't see you with contac lens. >> you're sticking your finger and and you got the germs. >> you have to watch your hands. >> david samadi is a surgeon.

i trust him with them. i was the worst. preparing for this segment, i'm saying thank god i don't wear these things anymore. 38 million contact lens users in the united states, 1 million infections. now, the con jukt va is part of the eye covering the colored part. that's where the lens goes. it's also probably the most important part to preserving your vision. if you get an infection there, you can get a scar in the cornea. you can even go blind from this. rare, but this is a serious matter. what do you do? you got to wash your hands with soap and water before you put your contact lens in and you got to dry them. if you introduce wetness into your eye, that increases the risk of infection. we have a chart on this. you have to dry your hands well. you have to take them out before bed, before showering, before swimming. i was worried about losing them

in the pool. what actually happens is that you can get an infection in your eye. rub and rinse each time you remove them. i didn't do that either. you got to disinfect them each time. you have to store the lens upside down with the caps open. you have to replace contact lens case at least once ever three months. >> people don't think of that. >> carry a spare pair of glasses. if you can't clean it properly, if you're in some toilet at a gas station, you want to put your glasses on and replace your contact lens too. >> sometimes forgetting to take them out when you go to sleep. what happens when you wake up in the morning and your eyes are scratchy. >> that's actually one of the biggest problem is that people want something easy. they don't want to put them in and take them out. that's when you end up having this kind of inflammation. it's a serious problem. it's inflammation of the cornea.

>> is that like con junktivitis. >> stimilar to that. it's very painful. if it's not taken care of, sometimes you can get even herpes simplex or fungal. there are many different types, different treatments for them. in this particular case, $175 million. it's unbelievable. >> yeah. >> $175 million cost of this. if you follow all the protocols we just put up, this is a common sense segment. you don't even need doctors to tell you. >> we do need doctors. >> wash your hands and make sure -- >> we're giving you a reminder. >> what about the extended wear contact lens? >> that's a good one. i think the way to take care of this is every three to six months, you should try to change them. you change your toothbrush every three months.

you change the contact lens every six month. e extended every three to six months. >> what about if you get a cold? >> that's a great point. there again you're introducing some virus into your eye. every time you touch that contact lens. again, it's the area of the eye just over the colored part. it gets infected. it's a very thin area actually. if it gets infected, it can get scarred. we can get rid of it in most cases. but you don't -- >> i think if you rinse it in a multi-purpose solution. this is also not to scare a lot of people. you just have to be careful. if you use a multi-purpose solution, your hands are clean -- >> do it every day. >> i think it's good to change this diz posable ones ever once in a while so you don't carry

the germs. >> now i got to change my toothbrush. >> about time. >> hey, got milk? well it's supposed to be a healthier alternative to regular milk, but is soy milk really all it's made out to be? we're going to separate medical fact from fiction on that one. stick around. dad, i know i haven't said this often enough, but thank you. thank you mom for protecting my future. thank you for being my hero and my dad. military families are uniquely thankful for many things, the legacy of usaa auto insurance could be one of them. if you're a current or former military member or their family, get an auto insurance quote and see why 92% of our members plan to stay for life.

back now with "sunday housecall." our weekly segment, should i worry. in which we talk about everything that worries us. one viewer is asking, can you tell me about the truth about soy products. it helps control my hot flashes, but if it increases chances of

breast cancer, should i stop drinking it? >> it's actually a very good question. we are surrounded by a lot of soy products, whether it's tofu, et cetera, 90%edamame, et cetera, soy milk. 90% of the soy in this country is genetically engineered. it is not the same kind of soy products we have in asla. in asia it has worked really well because it is all fermented and also they have reduced the amount of estrogen and they know what do and they take small amount. not the amount of soy that we are taking. a lot of these soybean oil and soybean proteins are in our processed food. that's not really so good because it has omega 6 polysaturated fat. that can cause a lot of inflammation. in general i want to say i'm not a big fan of soy and soy products. there has been a lot of studies out there that's controversial. reduces prostate cancer. we're not completely sure about that. reduces heart disease, not really with confidence. in the past, there has been some

issues about soy and fertility in men and also many other things that we've seen. increasing the breast cancer. a lot of this has to do with phytoestrogens. soy has a lot offest zbin from it that can take care of the hot flashes but maybe is causing breast cancer. >> i'm sorry, are there studies? the studies, but have they proven there is any link between soy and breast cancer? >> in human clinical trials the group that took soy, they had some increase in the number of cells in their breasts and maybe. this is a huge stretch -- possibility of breast cancer. nobody has been able to prove this. if you're going to take soy products, take fermented soy and also small amount. i don't want pregnant women to take this because it can get passed on to the kids. >> i want to echo a few points. the omega 6 fatty acids that are in soy i think have been shown to be bad for the heart. that's a problem. it's inflammation. that's a negative for soy. a positive for soy, there was a study out in the journal

"menopause" just this past year that showed that women who took soy had decrease in the exact symptoms the viewer is talking about -- hot flashes. i would argue if you are a woman with hot flashes and nothing else is working and this works for you, maybe for a year or two or three, maybe it is okay. but the breast cancer stuff that david's talking about, i was also impressed with that information because it does look like the isoflavones that interfere with estrogen, that increase the amount of estrogen receptors can actually increase your risk of at least what comes before breast cancer. on one side you have the risk possibly of more breast cancer and inflainflammation. on the other side, if you are a woman and nothing else works -- >> don't take too much. >> maybe eat some edamame with some soy. >> maybe the asian variety. the miso and -- >> so small amount is good because it has a lot of vitamin b-1, b-2, b-6, magnesium and potassium. the key is small amount.

>> got it. there is fascinating. a surgeon in colorado now among the first in the country to offer knee implants made from a 3-d printer. a 3-d printer. coming up, we'll take at how the procedure works and why it promises to improve the lives of so many patients. (receptionist) gunderman group.

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it's being hailed as a revolutionary option for patients requiring total knee replacements. prosthetics created with the help of 3-d printing. it is a new take on a common procedure which promises less time in the operating room and less time in recovery. it sounds great. i mean if you can explain how it works and how is this going to help surgeons? >> first of all, i agree with this, less o.r. time, quicker that's what we all wants. a company called confermis. it has approval. 600,000 total knee replacements every year. if you have it done, surgeons have to choose between several different types of knee but they won't always be able to fit you perfectly. at least one-quarter to one-third of the time they'll find out after the fact that it is not a perfect fit. well, this is how it works.

they take a cat scan image, ct scan image. from there they get a digital image and make a wax plodle that's perfectly to the keeping of your knee. once they have the wax model they build the knee replacement to fit that model. so what they put into your body is an identical dimensions of what they are taking out because they're removing part of the bone leer. it looks like a wood shop inside an orthopedic o.r. >> what do they do now? >> they take them off the shelf. they make a few different versions, they take them off the shelf. >> now every or the pikd surgeon in the country is like -- what? right now the model -- this is same way that the dentist put the implant for years. custom tailored surgery. patient-specific type. this is what is exciting about surgery of the future, is that not everyone is going to have the same kind of implant. right now you take it off the shelf. you basically the surgeon has to cut and tailor it and there is a lot of chopping and cutting and designing that goes on in order

to fit that knee. but now with 3-d printing, what happens is they take the cat scan, they can find the map or geometry of that particular knee. your free structure is very different than mine. certainly different than dr. siegel. then they basically take that model and give it to this 3-d printing and comes the new knee just for us. >> they do this for other things, too? elbows -- >> we're taking stem cells and creating new valves, new heart valves, new bones, et cetera. this is a very exciting. look into 3-d printing. i'm excited about there. i think this is going to open up a whole patient-tailored type of surgery. >> organs, too. body organs. >> i think in the next few years, yeah. within the next few years. that's what we do with my pr prostate surgery. patient tailored prostate surgery. >> they can make a whole new you. >> let's not jump to the organ

replacement so fast. >> that's the point. lose weight. takes away weight on your joints. >> but it can replace -- >> exercise, lose weight and eat right. >> thanks for watching. thanks so much. welcome to america's news headquarters from washington. we start today with a fox news alert. a horrific new video from the terrorist group isis claiming they've beheaded american hostage peter kassig. the video also appears to show the mass execution of several more hostages believed to be syrian soldiers. our chief intelligence correspondent has been working this story since it broke overnight and joins us now. what do we know? >> the national security advisor, susan rice, has briefed president obama on air force one about the 16-minute video. while the u.s. intelligence community is working to