>> reporter: this musical production is also as erotic and decadent as you'd expect. the collaboration of comedy writers creating an ultraspicy script. >> you don't have to have -- >> reporter: it's all capitalizing on the frenzy caused by this dirty sensation. ♪ how much can i handle >> reporter: and if you have an image in mind of ana and christian, you might just be surprised. >> i think this is the role i was born to play. i read in the book he says he has dark hair. i'm perfect for this. >> reporter: now, this kinky musical is taking its show on the road. traveling to many different cities across the united states and it's all because of this book "50 shades of grey." which is now nearing $500 million in sales and having sold 65 million copies worldwide. hollywood is also trying to cash

in on the frenzy. but for now, fans can get their fill of ana and christian on stage. felicia taylor, cnn, new york. >> i'll be back here in 30 minutes. "sanjay gupta md" is next. hello, and thanks for joining us today. i'm going to bust one of the biggest myths about the flu. and hopefully teach you how to protect your family from this epidemic. also, the legendary surgeon who has worked on more top athletes than just about anyone. he just operated on the redskins' quarterback, rg3. and a fitness dilemma. why you don't want to watch your weight too closely. we'll explain. let's get started. ♪ by now you've heard, it's the worst flu season in years.

emergency rooms in many places are overflowing. at least 20 children have died. among them, a young man named max from texas. take a look at his picture. his mom said he went from being a healthy, 17-year-old to dying. in just a matter of days. it is a fast-moving story. so here's what you need to know. the flu strikes fast. and symptoms much more severe than a common cold. you feel fine one day, and then the next, a sudden fever, sore throat, headache, and tightness in the chest. >> over 200,000 people every year are hospitalized with influenza. and anywhere from 3 to nearly 50,000 people will die each year. >> flu cases are at epidemic proportions now at some areas of the country. it's the most we have seen this time of the year in a decade. >> they may get more

complications from this particular h3-n2 strain, which may make them ill for a longer period of time. >> the active strain is h3-n2. it typically surfaces earlier in the season, tends to produce stronger symptoms. and it is highly contagious. in fact, when someone coughs or sneezes, these tiny droplets are released into the air. you can't see them with the human eye. they can live on surfaces for eight hours. say your co-worker is sick. you come over, use their key board, you've got the germs on your hand and then you touch your nose or mouth, and now you're infected. and the problem escalates if you spend several hours in tight quarters. like on an airplane. at highest risk, passengers two rows in front or behind the infected person. the best way to kill those germs is to wash your hands and do it often. and use real soap and real water. the problem is that most people don't actually wash their hands long enough. my best advice, actually sing

the happy birthday song twice while you're washing your hands. that's going to be long enough. not quick to get rid of these viruses. another key to prevention is getting the flu shot. getting vaccinated. reduces your risk of getting the flu by around 60%. now another benefit to getting your flu shot is if you do get sick, your symptoms may not last as long. won't be as severe. as compared to those who weren't vaccinated. you know, we've been getting a lot of questions about the flu from you at home. i want to bring in one of my producers, ben tinker. you've been filtering through a lot of questions for us. what are you hearing? >> tons and tons of questions. first and foremost, people are wondering where they can get the vaccine, saying they can't find it. a lot of people want to know if there is a shortage. >> the best way to describe it as spot shortages, a lot of doses out there, 135 million manufactured. 128 million were distributed. 112 million have been given. that means there's 16 million still out there. now it's a question of putting them in the right spot.

so i think best bet is if you can't find it, your usual pharmacy, look somewhere else. >> right. a lot of people want to know, too, and these would be friends of mine, not friends of yours, who thought they could get the flu from a flu shot. and you say that's absolutely not true. >> some of my friends have asked that question as well. that is a myth. and is i think we can 'tis pens with this right now is saying that it's actually a dead virus. and an inactive virus. this is the flu shot here. you can't get it from this. but what can happen, ben, and for everybody else, once you get this shot, you're actually activating your immune system. and when you activate the immune system, that's often what makes you feel cruddy. it's not the virus itself, it's your immune system. that's not the flu. that's your body doing what it's supposed to do. >> so when you start to feel cruddy when is the time to go to the hospital and stay on the couch, chicken noodle soup, flat ginger ale? >> all of mom's advice. for most people, it's going to be exactly what you just described. you need to get rest, to let your immune system recover, drink plenty of fluids, because you can get dehydrated. take a look at the list. if you have sudden dizziness,

certainly if you have difficulty breathing, if you have pressure in the chest area. and this last one important as well. if your symptoms improve, you think you've beat the flu but the fever returns, that could mean you have a secondary infection. >> one last question. our viewer michael in philadelphia wanted to know, 50,000 people the cdc says can die every year. that sounds like a lot. how does it happen? how does it get to that point where it can be so dangerous, so deadly? >> let me show something that i think is really important. when you think about somebody having the flu, you're sort of counting on their immune system starting to take over. your immune cells are sort of all over your body and your bone marrow, for example. but let's say your immune system has done its job and it worked really hard to basically fight the flu. what can happen after that is you can develop secondary infections. most commonly, these secondary infections will affect the lung. known as staphylococcus. and if you look at what happened especially in young people who died from the flu.

it's not the virus itself that the body has combatted but that secondary infection from a bacteria. so definitely keep those questions coming. thank you very much, ben. coming up on the show, we're going to talk to dr. james andrews. he's the surgeon to the redskins, rg3. you may remember this thing. he's a doctor who has literally treated hundreds of stars. he's going to join us next. by blocking some of the fat you eat. let's fight fat with alli. ♪ your doctor will say get smart about your weight. i tried weight loss plans... but their shakes aren't always made for people with diabetes. that's why there's glucerna hunger smart shakes. they have carb steady, with carbs that digest slowly to help minimize blood sugar spikes. and they have six grams of sugars. with fifteen grams of protein to help manage hunger... look who's getting smart about her weight. [ male announcer ] glucerna hunger smart. a smart way to help manage hunger and diabetes. he opened up jake's very private world.

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athletes today are able to come back strong from injuries. that once would have ended their careers. take adrian peterson, for example. he nearly set the nfl running record less than a year after tearing his acl ligament in his knee, and everyone has seen redskins' quarterback robert griffin iii, rg3, he also came back from a torn acl and then went down again at the end of a playoff game. he just had an operation to fix his acl again and also his lcl ligament. dr. james andrews performed the operations on griffin and on peterson. i'll tell you, dr. andrews is far and away the star of his field. he's team dr. for the redskins, for the devil rays, football teams at auburn and university of alabama. they've done okay this season. he found time to author a new book called "any given monday." dr. andrews, a real honor to have you on the show.

>> well, it's my pleasure to be here. >> sir, obviously you've been busy the last several days. i want to ask you a few questions about just football and sort of what you do in general. the nfl, as you know, has rolled out new sideline exams designed to keep athletes off the field if they have a concussion. i'm curious, when you think about that, is that sort of model possible for other injuries, like ankles or knees or shoulders? >> well, i think there's improvement to be done in all categories. you know, in the heat of the battle on the sidelines at an nfl game, it's sometimes tough. and professional athletes, the last ones to try to take themselves out of a football game. >> i want to show a little bit of what -- these knee ligaments for people who are curious about the anatomy here. the knee is held together by several different ligaments.

the medial collateral ligament, the posterior ligament. the lateral collateral. there's about 2,000 people who injury their acl every year. half get operations, roughly. we looked at some of the data. if you're not a famous athlete, dr. andrews, can you still recover like an adrian peterson did, for example? >> well, you've got to realize that an athlete of that caliber has such tremendous genetics and ability. also has an ability to recover. and if you try to take an average sunday warrior with that same injury and try to expect the same result in that lower level athlete, then you can't really compare the two with their recovery. and i've said this often. if you operate on the right caliber athlete, they make you look pretty good as a physician.

>> what do you tell people, especially parents or coaches of young players, in terms of preventing these injuries in the first place? >> the nfl now has sideline replay cameras where we can go and review retrospectively what happened. which is a new thing this year on the sidelines. which helps in the nfl. the problem with sports, though, is that the best care of an athlete is at the professional level, and the least care is at the high school and junior high school level. and our high school and junior high school kids are more vulnerable to injury. and so we're upside down with the care of athletes. these young kids really need more supervision. they need athletic trainers. that's one of the things we're working on in multiple states. there should be an athletic trainer in every public high school, because that's where minor injuries occur. and if they're recognized early by the trainers, then you can prevent minor injuries from becoming major injuries.

and that's really important with any injury, particularly, as you noted, as you talked about with concussions. >> dr. james andrews, again, really appreciate you being on the show. i think a lot of people have a lot to learn from you. appreciate it, sir. >> thank you very much. it's a pleasure. i've talked a lot about the dangers of football and its big hits. last spring, former nfl linebacker junior seau, a sure hall-of-famer, he killed himself, shot himself in the chest after showing some bizarre behavior. and the question came up immediately, had he suffered brain damage from all those concussions? well now it appears he did. exams of seau's brain by the national institutes of health revealed he suffered from chronic traumatic encephalopathy, cte. it's a degenerative brain disease with alzheimer's-like symptoms. mood swings, aggression, memory loss and depression. and it happens when repeated hits to the head lead to a build-up of proteins in the brain. and you can see the difference under the microscope. the clean, white brain, a normal

brain. the brown, spotted brain, a cte-impacted brain. more than 30 former professional players have been diagnosed with cte. but dr. russell lonzer who oversaw seau's examination says we still don't know how big the risk is. >> we need to understand better the incidents prevalence. we need to develop diagnostic tools to diagnose it, potentially, before someone passes away. we need to better understand the etiology of it so we can better manage this disorder in the future. >> but keep in mind, we hardly even talked about cte just a few years ago. there are mysterious components of it that we're going to stay on top of. up next, how to avoid diet pitfalls with real science. coming back with dr. robert lustig right after this.

over the last few months, you've probably heard me talk a lot about the importance of limiting sugar in your diet. and a lot of that knowledge is based upon the work of dr. robert lustig. he's the author of this new book called "fat chance." you and i have talked about this before and you're not talking about just adding to your

waistline or pounds to your body. you're talking about something in the way that these substances behave in the body. >> that's right. we're not talking about pounds. i think that the worst thing you can do is get on the scale. when you get on the scale, you're measuring four compartments at once. bone, more is better. muscle. more is better. subcutaneous or big butt fat, if you will. more is better. in fact, people with larger amounts of subcutaneous fat have increased longevity. and belly fat. more is worse. but that's only 4% of your total body weight. so when you stand on a scale, what are you measuring, you can't know. so it's not about weight, it's about waste. that tells you where the metabolic dysfunction is. the problem is, there are a lot of people out there who are normal weight who have that same metabolic dysfunction as the oobese do, they just don't know it. 40% of normal weight people have metabolic dysfunction. they are as in this issue as the obese are.

>> we see, they call it skinny fat, i see, right, people who look skinny but then they have large waists. >> not even just large waists. they can have normal waists. jimmy bell, a neuro imageer at cambridge, university of college london calls it tofi, t-o-f-i. thin on the outside, fat on the inside. when you do mris inside, you can actually see the fat in all of the organs. the muscle, the heart, et cetera. bottom line is, from your weight, you can't tell where you are. >> so how -- so what do you do? how can you tell, first of all? >> well, in fact, the best way is, again, waist circumference. that's the cheapest way. there are some lab tests your doctor can do, a fasting insulin and some liver function tests that can give you clues as to whether or not there is a problem or not. but the single best way to deal with excess fat is to get it off and the easiest way to do that is to exercise. the problem with exercise is, every doctor will tell you, if you exercise, you would lose weight. that's because they say a calorie is a calorie.

so if you burn them off, you would lose weight. guess what, there is not one scientific study, not one literature reference that you reference that you can point to that says that exercise causes weight loss. what it does is causes muscle gain and missile has mi to kondrrhea, and that is the energy-burning factories inside of the cells and tlf, you won't turn it into liver fat or muscle fat, but burn it inside and you will be healthier, but it won't show up on the scale. >> so exercise revs up the energy and you burn more effectively rather than storing as fat. >> basically when you eat something it has one of three fates. you can burn it which is the best, and you can store it which is not so good or go out in the urine which is type two diabetes and that will kill you, so which would you rather have it? >> so we try to give you advice that is based in science here, and the doctor has plenty to say here about sugar. this month, i got to visit the

consumer show in las vegas and nothing in that space but gadgets. so what are we looking at here. >> this is a puzzle box orbit and it is a brain-controlled helicopter, so if i stop talking for a second and concentrate on the bar, i will be able to make the helicopter fly. just like that. we are looking at my brain waves between 12 and 20 hertz, and if i am that focused, it will trigger the helicopter. >> reporter: this is decidedly

low tech and hard to believe it is here at the high-tech show, but it is the back end with all of the technology, and andrea, thank you for joining us, and what is this here? >> it is a fork designed to help you eat more slowly. every time i put food to my mouth, it is a timer. in this case, we have ten-second time timer and if i put food in my mouth under that time, it will vibrate thanks for the vibration at the end of the fork. it is gentle and we don't want to electrocute anybody, but a very mild vibration. >> reporter: the thing about the insurance company helping to sponsor something like dance, dance revolution, how does that come about? >> well, part of the job is to heldp people live healthy and we

know that preventable disease is the number one cost driver and if we can beat childhood obesity and adults, that will lower the cost for everyone. >> reporter: and a gentle note for exercise and to take care of the diet, sometimes the technology can help as well, as you saw there. now a former emergency room physician is telling us to slow down. it seems that we are plugged in 24/7 and he is going to make a case for going full throttle 24/6. ♪ if loving you is wrong

♪ i don't wanna be right

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imagine a 15-year-old girl told by her doctor that she may not live for another week by something that she is doing to her body. well, there is this girl, chelsea, but the old adage

applies, what doesn't kill you makes you stronger. when you see her vibrant, it is hard to believe that she remembers the day that part of her brain died. she suffered a stroke brought on by severe anorexia. >> i know from looking at the hospital record s ths that i wa pounds. >> 58 pounds and close to dying because so many parts of the body were dying there. are no pictures of her at her sickest. this is a picture from the year earlier when she was in and out of treatment centers, but she remembers starting a diet with her mom in the midst of a dangerous childhood spiraled out of control and nearly killed her. >> looking back, my body was the only way to tell the people around me that i was not okay and i was scared and i needed he help. >> help came for roff when she was hospitalized for 18 months following her stroke. >> i had a bed and nurses and doctors that showed up everyday

and were consistent and i had food and i had water, and i was finally getting like digestive function back. >> as part of the recovery, her therapist suggested that roff try yoga to listen to the body again without burning too many c calories and almost immediately, she was hooked. >> before i knew it, i had gained 20 or 30 pounds and was teaching yogat a juvenile detention center and it became a sort of love affair for me. my name is chelsea and i'm a patient of dr. wootton. >> reporter: today, she writes and shares her struggles with eating disorders with her loved ones. >> i tell girls, i'm not afraid of my fullness. >> reporter: she is quick to point out that owe ga is not a cure for anything. it is one of the tools that if usor