Top dog. But first, here are the number 1 in just 60 seconds. Good evening. We start here with the issue of sports. Not football this time but Pro Wrestling. While many people may think the often very real, and tonight we have the story of daniel bryan, a wwe champ whose life is now taking an unexpected and painful turn. Heres abcs Kayna Whitworth. Reporter hes the now former professional wrestler best known for dishing out moves like the missile drop kick. The fairy tale has come true this is my first time growing peach trees. Its really good. Reporter daniel bryan is speaking out for the first time with his wife brie bella, a professional wrestler herself, after bryan announced 4iz retirement last week. I took a test that said maybe my brain isnt as okay as i thought it was. Head butts on top of the ladder. Reporter the 34yearold wwe champion says he made the choice after years of suffering blows to the head and many concussions. Within the first five months of my wrestling career id already had three concussions. And then it gets to the point when youve been wrestling for 16 years, that adds up to a lot of concussions. Easy for the yes man. Yes yes reporter who had wrestled and kicked his way to the worlds biggest stage before understanding the effects the highimpact sport might be having on his brain. The more concussions you have, the more susceptible you are to them. Reporter he is just the latest athlete to take a stance in what has become a gathering storm surrounding the repercussions of repeated trauma to the head. Trauma that can lead to cte, chronic traumatic encephalopathy, the brain disease linked to years of repeated hard hits to the head. Its identified only after death and has been found in numerous nfl players like hall of Famers Frank Gifford and junior seau. Last year San Francisco 49ers linebacker Chris Borland said he was retiring from football aer just one season because of concerns about his brain. He spoke with espns outside the lines. Football is an elective. Its a game. Its make believe. And to think that people have game is, yeah, i think the meaninglessness of it, you draw the line at brain damage. Reporter bryan says some of the concussions he suffered led to seizures, which at the time he tried to keep private. At first not even telling brie. I was with him with one of his seizures after a concussion. And i mean, it scared me so bad i just i lost it. I just implored her, please dont say anything to anybody. Yeah. If i tell them if i have a concussion theyre not going to let me do what i do anymore. I think a lot of people think that Pro Wrestling is fake. Is what youre doing in the ring real . Its not real, and its not fake. So the when you get slammed, you really get slammed. Im helping him slam me. But youre getting injured. Yes. Reporter last year he was sidelined with injury. The wwe took him off their roster. Wwes doctor said i cant in good conscience allow to you risk yourself like that. Athletes are like thoroughbreds. Someone has to pull the reins because they will run themselves into the ground if given that opportunity. Wrestlers say the wwe hasnt always been as protective. In 2015 veto lagrasso and Evan Singleton filed suit, acougs the wwe of failing to diagnose concussions and sending people into the ring injured. Even citing a case of wrestling superstar chris benoit, famous for his head butts, who after his death was found to have suffered from severe cte. The wwe told us, wwe has never concealed any medical information related to concussions or otherwise from our performers, and in fact wwe has been well ahead of the nfl and other sports in implementing Concussion Management procedures and policies. The wwe implemented a Talent Wellness Program that now includes impact concussion testing, a protocol instituted in 2006. When i first started working for wwe, which was 2000, there wasnt a whole lot of concussion testing or anything like that. But there wasnt in any sports. Reporter that change in conversation coming about partly through the determination of the doctor recently played by will smith in the movie concussion. Tell the truth. Dr. Bennett omalu. Were look at a microscopic slide, a microscopic picture of the brain of a normal individual. The same region of the brain in a Football Player about 40 years old. And what you can see, the brownish spots. Reporter a forensic pathologist, omalu first discovered cte while performing an autopsy on nfl great mike webster. A fourtime super bowl champ who died from a heart attack while homeless, broke, and alone. Mike webster died today. A heart attack took his life at the age of 50. Reporter believing that Behavioral Changes were caused by trauma to his brain, dr. Omalu performed websters extensive autopsy. What struck me, what everybody was talking about how football. I had to provide an explanation for that. Reporter he analyzed websters brain and uncovered a new medical condition. Thats when he called it cte and weechbtly told my ly recently told my colleague brian pitts about his findings. The most significant contributory factor to ct sechlt exposure to Blunt Force Trauma of the head. Are we talking like gentle slaps to the head . Violent slaps that would make your brain move forward and backward, sideways in your injuries. You have to think about hits to the head like we think about smoking and lung cancer. You start young enough, youre going to open up the door to lung cancer, just like if you get hid in the head thousands of times every year while your brain is still developing youre opening up the door to cte. Reporter today more professional athletes are not as toll Contact Sports is taking on them. Ben utek. Reporter a former tight end for the Indianapolis Colts and cincinnati bengals. For me it has revolved more around memories and, you know, abilities. Reporter the nfl released this report in the days leading up to super bowl 50, saying diagnosed concussions in the league increased 58 this season, with a staggering 271 preseason. Compare that to the 206 concussions reported in 2014. The nfl told abc news the reason for an increase in concussions any significant trends. I think theres no question that the cte discussion and respect that were developing is going to lead to better outcome for people. We need to embrace this opportunity to prevent this disease from happening in the next generation of athletes. Reporter for bryan he hopes the difference but still worries the ring. Theres a specific incident, it was a couple months ago, she got she was standing on the announce table and she got swiped off and she just took a big fall to the floor. A little bit ago shed gotten a concussion in the ring. So she had to take a week or two off. Shes strong, but you still sometimes shes my wife, you know, and you want to protect her. Right . Reporter both are hoping to start a family. So for wwe fans that might mean another retirement announcement and soon. Feeling and seeing everything he went through with his retirement, i just feel that its time for me to hang up the boots. Its going to be hard on me as well. But that day is definitely very close. Reporter for nightline im Kayna Whitworth in los angeles. Next, the wealthy town with a skyrocketing teen suicide rate. What parents, teachers, and students are doing to stop it. Shopping for an suv . Well, this is the time. And your ford dealer is the place, thats right. Just announced. Ford explorer. Edge. Escape. 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Reporter houses here sell for millions, and the high but the limitless potential that palo alto projects has another side. A socalled hot spot for suicides p. Because of the sheer number it was just massive. Reporter just last year four palo alto teens took their own lives, enough to be considered a suicide cluster. And this was the second one to rock this community in six years. We were losing a child about every six weeks. Crisis. Reporter now with the teen suicide rate five times the national average, prompting the cdc to announce today an investigation as to why so many kids here have chosen to end it all. A 16yearold boy took his own life. Reporter on the night one of her classmates died, student martha cabot took to youtube placing blame, what she called her towns Pressure Cooker environment. It went viral. The amount of stress on a student is ridiculous. Reporter for Christian Leong and andrew baird, at the time juniors at the other Public High School in town, word of his death stunned them. It was really sad for me that kind of thing is even possible for someone our age. Reporter what does it, do you think . For your peers and people suddenly realize it is an option, when someone they know takes that option. Well, with the whole nature of suicide clusters, we see that when one person does it other people who considered it as an option may consider it more seriously. Which is really frightening. I cant even figure myself out . How on earth am i to expect anyone else to . Reporter so last summer they made this documentary called unmasked unmasked. Their classmates revealing their own struggles with anxiety and depression. Through my struggles with depression i selfmedicated a lot with alcohol and drugs. I was suffering anxiety attacks. Theyre trying to take off the happy everything is okay mask that our community has and really just talk about the deep problems that were going through. Reporter where does that pressure come from . Does it come from classmates . Does it come from teachers . Does it come from parents . Then it would be a lot easier to solve the problem. Reporter dr. Madeline gould, an epidemiologist at columbia university, was invited to palo alto to study what could be causing the Alarming Number of teen suicides. There are many communities that have high stress levels and are economically advantaged and they havent experienced a suicide cluster. Reporter she cautions that one teen suicide can have the frightening and unintended consequence of signaling to other teens that its a real option. They practically dont occur in any other age group. So between the social influences and the biological influences it makes them much more vulnerable to being influenced by somebody elses suicide. Reporter and what they cant see at that time is that there are other ways out of the pain, something taylor chu is alive to feel grateful for. Its still to this day i struggle with the terminology attempted suicide. Reporter the now graduate of Palo Alto High School says the year to achieve was too much. It was just insane. I did almost all of the a. P. Classes i could take. Reporter taylor says sleep was the one thing she didnt make time for. For a long time id been feeling like i was drowning. I didnt know how to say that i needed a break. Reporter it led her to one impulsive moment of desperation. What i was trying to achieve was this separation from my reality that i couldnt face. Reporter her parents got her into treatment. And with the help of her teachers she made changes to lessen her load. But julianna tachabanas brother ben didnt get the help he needed. He was a sophomore when he took his own life. The message these two women who have overcome enormous pain want to spread life is worth living. If you have people around you that kind of keep reminding you that it is going to get better. Things are really look up. Reporter mark vincenti, a high school who mourned the loss of some of his own students, sees a need for change in the classroom. There is a lot that classrooms can do to make teenage despair more bearable and more survivable. That the School Environment is crucial. Reporter he believes smaller class sizes and, yes, less homework. Students feeling like they can say enough could make a difference. Whats so challenging about going to high school in this part of the country . The things that are challenging about going to high school here i believe are infecting high schools across the country because we see now a National Discussion about overstressed, burnedout teernlgds. Reporter Gunn High School has taken action, implementing the yes program to teach students positive coping techniques to deal with stress. The thing that im most proud of is that were not doing just one or two things. Were really looking at holistic plans to sort of build a web of support for our students. Reporter in suicide clusters are definitely not just a palo alto problem. Crosses every socioeconomic characteristic. Communities have been impoverished, and weve seen them have a suicide cluster. Very driven, wealthy communities have suicide clusters. Reporter and it turns out some 15 to 20 of all teens have considered suicide. But reducing stigma around depression and creating dialogue about Mental Health are crucial steps toward preventing these deaths. It really is a community effort. Its really everyone has a role, everyone has a part. It could just be noticing someones sad and going over to them and saying hey, are you okay . Do you want to talk . And those little instances of reaching out i think go a long way. Reporter for nightline im byron pitts. Our thanks to byron for that important report. And if you want to find resources about Mental Health and suicide prevention, including Diane Sawyers recent interview with sue klebold about you can go to our website at abc. Com. And ahead something very different. Well take you to the super bowl of dog shows. The beauty routines, diets, and the dog who just took home best in show at the Westminster Dog Show tonight. What happens when lobster gets grilled, baked, and paired with even more lobster . You get hungry. And you count the seconds until red lobsters lobsterfest is back with the largest variety of lobster dishes of the year. Like new dueling lobster tails with one tail stuffed with crab, and the other with langostino lobster macandcheese, its a party on a plate and you know every bite of lobster lovers dream lives up to its name. Hey, eating is believing. The bold nissan rogue, with intuitive allwheel drive. Because winter needs a hero. Now get a 189 per month lease on the 2016 nissan rogue. Nissan. Innovation that excites. If your family outing is magical for all the wrong reasons. You may be muddling through allergies. Try zyrtec for powerful allergy relief. And zyrtec is different than claritin. Because it starts working faster on the first day you take it. Finally tonight, we have a new top dog. C. J. , the german shorthaired pointer, won best in show tonight in the Westminster Kennel Club dog show. It all looks so seamless and so cute out there on the stage, but goes into these dogs behind the scenes. For that heres abcs jesse palmer. Reporter the contestants may be cute. What a beautiful mover. Reporter but the competition is always fierce. This is like the super bowl. Its like the world series for us. If you get here and you win its like nothing else in the world. Reporter im at the 140th Westminster Dog Show. There are over 3,000 dogs here. And theyre all competing for one thing and one thing only. Best in show. Like any pageant, the competitors beauty routines are complex. They have as many products as you would. Shampoo for an hour. Wow. And then it takes five hours to forcedry every cord to get it dry. Reporter there are plenty of divas on hand. This dog can not only just look beautiful in the ring but he can take down a gazelle. He looks so nice and docile and sweet and gentle. She likes mcdonalds. Thats her favorite. Plain cheeseburgers and chicken mcnuggets. Me too. Reporter and there are also some newcomers in the crowd. Seven in total. Including the french briget picard. They jump out of their skin to just being here. Reporter and the spanish water dog. This is wirefox terrier. Reporter then there are the tried and true favorites. The wirefox terrier is often top dog. The breed has won best in show 14 times. And this time around classic German Shepherd rumor beautiful. Reporter is a crowd favorite. In the end only one dog could be best in show. Best in show dog tonight 2016 is the german shorthaired pointer. The german shorthaired pointer, c. J. reporter but i can safely say all the contestants are pretty adorable. This makes my day. Reporter for nightline im jesse palmer in new york. Even as a cat guy id have to agree. Report. Nightline tonight. Tune in to gma in the morning and youll be able to see the winner of the Westminster Kennel Club dog show c. J. Live on the air. In the meantime were online 24 7 on our Nightline Facebook page and at abcnews. Com. Thanks again for watching and good night. Announcer the following program for the new walkfit platinum orthotics is proudly sponsored by ideal living. 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