♪ we'll never feel that anymore ♪ this is "nightline." >> tonight, taking a stand. >> we're not innocent children and we can fight back now. >> elite gymnasts who brought glory to the u.s. now on capitol hill alleging years of sexual abuse at the hands of their team doctor. >> many times this took place in my own room in my own bed. >> standing with them, one of the magnificent 7 who claims the systemic culture of fear within their hallowed training grounds. >> we were around a lot of adults that were kind of cruel. plus, change your brain. top-notch techies popping so-called smart pills to enhance their memory and focus. >> scale of 1 to 10,se? >> 10. >> these

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good evening. thanks for joining us. they were among the toughest elite athletes in the world. but anti-war their single-minded drive that ironically may have left some of them vulnerable to a sexual predator. some women of team usa gymnastics say they were forced to endure psychological and physical abuse in the name of olympic glory and they're now fighting back to protect the young athletes of the future. she will forever be one of the magnificent 7. at just 14, dominique mochianu helped the team to gold in 1996. the journey to olympic glory came with the backdrop of abuse from her legendary coaches. >> i was scared of getting in trouble all the time because they had this sense of control and fear in the gym. >> reporter: for years she's

been a singular voice, speaking out against the karolys and the empire they helped build, usa gymnastics. >> i've been speaking for ten years and people are finally listening. >> reporter: she testified on capitol hill. >> i have firsthand knowledge of how the culture set the stage for other atrocities to occur. it as culture of fear, intimidation, humiliation. >> reporter: standing with her fellow champions jamie dancher and jessica howard, saying that culture created an environment that allowed their team doctor to sexually abuse them, and many others. >> i was sexually as bussed as were so many other athletes. >> the doctor accused me at the national train interesting in texas. worse, he abused me in my hotel room and sydney, the olympic games. >> reporter: he was the head physician for team usa gymnastics for 19 years. you can see him here after

carrie injured her ankle in the 1996. >> dr. nasser acted as the good guy, supporting me emotionally and promising relief from the pain. now i know he expertly abused me under the guys of treatment. >> reporter: the three former gymnasts shared their very personal stories with the senate judiciary committee to support landmark legislation that would help protect young athletes from sexual predators. >> protecting all children in sports from abuse is paramount importance. that is why this bill is so vital. >> reporter: dr. nasser has denied these allegations of sexual abuse. usa gymnastics officials were invited to testify but declined, citing pending litigation. but in a statement given to the associated press, usa gymnastics says it cares deeply about the issues raised and supports the bill. mochianu herself was not a victim of the alleged sexual abuse and the k acharolys have r been accused, she says her years working with them left emotional scars. >> if you were late to an event

there was a chance you could get kicked out of the gym. things were very, very stressful. >> reporter: she says her fate was in the hands of bella and marta karoly, known for their brusque style and uncompromising methods. they coached the likes of simone biles to greatness. >> power through everybody -- >> reporter: for the lucky ones the road to olympic stardom led to the karoly ranch in texas. when dominique arrived there as a young teen it wasn't what she imagined. >> a lot of athletes weren't smiling, weren't happy. it just -- right away when i walked in the gym i felt like the sense of coldness. >> reporter: she says when gymnasts were injured they were pressured to keep training. >> as if you, the athlete, were weak if you spoke up and said, i'm hurting. you are not allowed to say, i'm hurting. and so that creates a cycle of psychological warfare in a way. i got humiliated. i was mortified.

>> reporter: mochianu says this culture of shaming and fear was ultimately to blame for the recent allegations of sexual abuse against dr. that is nasse >> we were around a lot of adults that were kind of cruel. so it opened the door for a predator to start grooming and being your friend. and being nice to you. hence enter dr. nasser. he was the nice one. this environment created that open door for him to kind of know and zero in on who he could groom. >> reporter: jamie dancher says it happened to her. >> he was helping me get to my olympic dream. something i've been dreaming is about since i was 3 years old. i didn't even question it. >> reporter: she took home bronze at the 2000 games in sydney, a shining triumph. behind it, she says, a painful trauma. >> he did touch my breasts underneath my t-shirt. when he first did the procedure,

we'll call it, i was 13 or 14. >> reporter: she says she met dr. nasser shortly after making the national team, seeking treatment for back pain. >> he said that there is a procedure or a way to get my hips back in alignment when he would put his fingers into my vaginally. and i don't know how i wasn't uncomfortable, but -- just being a kid and being a little girl and being in such an intense environment, i was so miserable because i felt like i got in trouble every day for something else. i had no idea back then that he was doing something wrong. >> reporter: rhythmic gym nas jessica howard said she also didn't realize what was going on. >> like i was so trusting. so it didn't even go through my head that this man could be hurting me. >> reporter: she told abc news she was willing to push through almost anything in order to become a three-time national champion. howard recently shared her story with abc's linsey davis. >> you come from a -- an entire

environment of silence and strength and doing what you're doing. doing what you're told, obedience. and i just did what i was told. i'd had extreme hip pain, like to the point where i would wake up in the morning unable to walk. >> so you showed up in your shorts and no underwear. >> uh-huh. >> you laid on the table, what happened next? >> he began massaging -- kind of my quads and i.t. bands. then he got closer and closer, you know. to more intimate areas. and then he penetrated me. >> reporter: today, nasser was in a michigan court facing charges of criminal sexual conduct involving a victim under 13 years of age. the alleged victim wasn't a gymnast or a patient in his care. it's one of four different ongoing criminal cases against nasser involving underaged sexual miss i've conduct, none of which are connected to his work with usa gymnastics. nasser has pleaded not guilty to

all charge. >> this guy is despicable, this guy is disgusting, and he's a monster. >> reporter: in total, more than 100 women and girls say they were victims of nasser. at least 60 of whom have filed civil complaints against him. >> i want him to spend the rest of his life in prison. the number of people that have come forward. the things that he's done are reprehensible. and an affront to basic human rights. and i believe that he deserves to be punished for what he's done. >> reporter: some, like dantcher, want to hold the karolys responsible. she filed a suit against them and other members of usa gymnastics. >> they created an atmosphere of intimidation, fear, control. we weren't allowed to talk. they controlled what we ate. they controlled when we spoke. >> reporter: a spokesperson told abc news, the karolys vehemently deny the allegations against them and the existence of a toxic environment."

they did not have any complaint from anyone concerning any athlete's alleged mistreatment by dr. nasser until they learned of his dismissal from usa gymnastics during the summer of 2015. for this mother, it's not just about justice for the past, it's about changing the future. >> the way i look at it is, i can't change the past, i can change the future. i want to heal the future and be part of saving so many future athletes the angst and the pain that we all went through. up next, could these so-called smart drugs really expand your mind? and later, it may be a clown, but this trailer's no joke. why fans are freaking out over the revival of a steven king classic. ok let's call his agent. i'm coming over right now. the newly advanced gle can see in your blind spot. [ dinosaur roar ] onboard cameras and radar detect danger all around you. driver assist systems pull you back

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helping improve memory, brillia. bradley cooper went from 0 to 10imitless." some saying it's not fiction touting benefits from increased scale of 1 to 10, how much smar nootropics? >> 10. >> reporter: startups like nootrabox cofounded by jeff wu are helping rebrand smart drugs as part of the billion-dollar supplement in the world, great, we have another einstein. if everyone was super smart, there's amount of innovation going on. >> reporter: but as these supplements become more questioning whether the claims are too good to be true. nootropics?me of the concerns >> the lack of controlled trials. the lack rigorous scientific research. the lack of studies that actually try to study

these different types of ai combinations. >> reporter: noodropibles stacks, mixes of individual incg from caffeine and l-thanine to herbal sup problems s ts to pirazapam. how did you get involved in nootropics? >> i wanted to be tbe the best f me possible. venture capital firm when he started digging around the internet and experimenting. >> tinkering witth>> you're jus ordering things from china and,d trying them? >> honestly, in the beginning it was very it's become more than just a hobby. business ise's caught the atten and financial backing of top silicon valley titans. inside thisb, hit team is pumpi thousands of these little pills

every day. how many different pills are you making here? >> so for our company we haveur different types of stacks. >> reporter: pills that claim to immediate clarity, energy, and flow, to enhancing memory, stamina, and resilience. >> the approaching the human body as if we were -- from an engineer's perspective. optimizing shortcug better, more productive versions of ou better human? >> i think we all want to be better versions of ourselves. i think distinctive factors of being human. >> reporter: it's a good pitch. but when jeff and cofounder michael brant brought it on the show. >> it scares the hell out of no. that's what people use to go on 48-hour coding binges. at the end of the day you're left with a headache, lack of

consequences so i'm alter brai nootropics are not labeled a drug, but as supplement. meaning they don't need fda approval. nootropics are not fdain we do generally regarded as safe, which is the highest level of things one can consume. >> does it ever concern you thi make them unsafe? >> no, because that's where our science of actually practicing doctors and called date any cross-indications. >> despite this ion nootropics side effects, many citing lack of studies abouton impacts. >> there may be one of the many ingredients on there that may reac w medicines or something else. that's why we always recommend discussion and approval by the >> reporter: it's not just the tech world these

little life optimizers. entrepreneur swears by them. >> it does sustain the speed i'm going at now. i'd have to take a couple things off my plate if i wanted to keep going without them. >> reporter: she takes one every day. nootrooer. how does it make you feel? >> it's not like press a button and turbo charge, you switch into nootropics mode. needed to switch gears. this is where i keep my nootropics. >> reporter: megan is self-proclaimed bio hacker who's been experimenting with it for years. >> i keep a l the time that you need additional focus during the day. >> reporter: we toured her lab where her team analyzes human tissue. on a stressful day she says sh eight to ten pills. >> before i found the nootrovox i had 12 different ones that i

was are summed up in these really well. >> reporter: and there are plenty of other like her. >> the problem is again, we don't have all the data to support whether or not tnts or combination work to improve brain health. >> going to this -- >> reporter: 29-year-old eric matsne created his company nootroo after he discovered i. >> a bio hacker finded the right pills and the right brand. >> reporter: he shows us his morning routine, over 60 supplements a day. >> i do three or four morning. >> reporter: are smart drugs the future? many here seem to think so. >> we're talkingience, we're ta these things into our own hands but also to proactively try and >> you couldn't keep doing the lifestyle that you're living right now without them? >> i would not like to find i'm rebecca jarvis in san francisco, california.

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finally tonight, everyone's favorite creepy killer clown is back it's been nearly 30 years since theet town of dairy, maine, was terrorized by pennywise, the clown. so you know what that means. "it" is back. warner brothers releasing the trailer for the remake of stephen king1990 horror miniseries earlier today.1 mill views on facebook alone. the based on king's novel was viewed at almost 20 million homes across the country when it first aired on abc as a tw miniseries. >> kiss me, fat boy! >> reporter: this time around

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