>> jimmy: that was fun. i want to thank these two guys, adam sandler and henry winkler for being here. would you mind apologizing to matt damon for me? >> you know what, matt, we have never met, and i am so sorry i took your time. there will be another show. >> jimmy: you wouldn't like him at all. oh, yeah. he is very, very unpleasant. well, thank you for watching. "nightline" is next. thanks, fellows. good night, everybody! [ cheering and applause ] ♪ this is "nightline." tonight, monday night football. >> go team! >> it's just electric. >> behind the scenes with rare nfl access. the eagles versus the chiefs.

>> as far as a regular season game, i can't think of a bigger game. >> a super bowl rematch. >> the kansas city chiefs have won super bowl lvii! >> with one kelce brother on each team, and a pop star who's had her own effect on the league. is there any other story line other than travis kelce and taylor swift? >> why swift had to miss tonight's game. plus, forever young? >> you can say it with a straight face, you may not die. >> you believe that? >> there is no question. >> the tech millionaire says it might be possible to stall the aging process, even turn back time, making headlines for injecting himself with his own son's plasma. >> he did it knowing full well what he was doing. >> spending millions on medications and methodology. but does it work? >> i'll take around 60 pills. >> oh, my dear. >> "nightline" will be right back.

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♪ thanks for joining us. tonight we scored rare behind the scenes access to the epic monday night football face-off, a super bowl rematch, pitting the two kelce brothers on opposite sides of the pigskin. add the taylor mania, and you have football fever, even when taylor couldn't make to it the game. why not? here is abc's

>> we have a backstage pass, the eagles versus the chiefs. and kelce versus kelce on monday night football. a rematch of last season's super bowl, where the eagles lost to the chiefs in a heartbreaker. >> the kansas city chiefs have won super bowl lvii! >> and the eagles this time getting revenge. we're behind the scenes of one of the most storied sports broadcasts of all time with that iconic theme music. ♪ on the biggest night of the year. millions watching, as tv audiences shrink. football and the nfl defying the odds with huge audiences, with touchdowns like this one. >> no taylor swift, no problem! >> as travis kelce celebrates. "nightline" is with the team who brings it all together. the legendary broadcasting duo

troy aikman and joe buck. >> for us, it's as big as it gets. >> as far as a regular season game, i can't think of a bigger game that we've called in our 22 years together. >> and sideline reporter lisa salters. >> it's just electric. every monday night feels like the super bowl to me. these fans are going to be going nuts. people watching at home are going to be going nuts. >> troy aikman is a hall of fame quarterback, and joe buck a hall of famer too for broadcasting. >> you just can't lose. one of these two teams is going to win. and one of these two fan bases is going to be thrilled. the other is going to be heartbroken, no doubt about it. >> steve eckels is the vice president and producer of monday night football. >> you take the biggest story lines. super bowl rematch, quarterbacks, kelces, not to mention the top two teams in each conference. those two brothers and their parents. it's a major story line. >> the eagles and the chiefs both at the top of their divisions and packed with star power. >> when you have evenly matched teams like this in a big game, a lot of people are looking at these big plays and the throws

down the field. but like a lot of games, it will come down to who makes the fewest mistakes. >> the quarterbacks, last year's league mvp patrick mahomes, and the runner-up, eagles jalen hurts. >> patrick mahomes and jalen hurts have already in the times they've met, they've already shown there is no stage too big for them. >> but tonight, all eyes are on the kelce brothers. jason kelce center for the eagles, and his younger brother travis, tight end for the chiefs. >> i know they both love each other. i know that they're going to be rooting for each other to do well. but i know they're going want to win. and that's just the way it is. >> one of them a finalist for people's sexiest man alive. the other, dating the most famous pop star in the world. >> the nfl world has known the kelce brothers for a long time, because they've just been really great players and what they've contributed to really successful teams. but taylor swift has put them on the map across the country.

even nonfootball fans. >> what other story lines are you watching? >> what else could there be? is there any other story line than travis kelce and taylor swift? are there any other story lines? no. >> the brothers have become two of football's biggest stars, both on and off the field. >> welcome back, ladies and gentlemen! to new heights. >> they co-host the new heights podcast, currently the number one sports podcast on spotify. >> typically, you'll hear a quarterback have a verbal cadence. well, if it gets too loud, they'll go to signaling to the center when they snap the ball. >> travis and jason releasing a christmas duet together last week, "fairy tale of philadelphia," part of jason's charity christmas album. ♪ the wind goes right through you, you first took my hand on a cold christmas eve, you promise me broad street was waiting for me ♪ >> even the matriarch of the family donna kelce getting spotlight attention too, sitting down with my colleague will

reeve yesterday. >> could you ever have imagined that you yourself, donna kelce would be so famous? >> no, not without them. that's for sure. what more can you want? it's just really special. >> but for mama kelce, she is just proud to see her boys once again facing off in one of the biggest games of the season. >> i think as a mother, you always have this same nightmare and the same dream. the nightmare is that they're slinging fast food for the rest of their life. and the dream is that they get the nobel peace prize. well, neither of those happen, thank god. they fall somewhere in between. they've pretty much reached the pinnacle of what they can do. it's special. >> seen in becomes seats with taylor swift at chiefs games, she says her youngest son can handle the global attention. >> i think travis is embracing it as much as he can. he'll be good at it. he likes attention. >> he does. >> he'll be fine. she is a very nice person. >> their relationship seeming to bring together two of the

biggest and most passionate groups in the country, swifties and nfl fans. do you think her coming to games, her dating a player, is it good for the nfl? >> i think it is. the more, the better. the more, the merrier. and she moves the number in the nfl. i mean, there is a difference when she is at games. and there is nothing wrong with showing that. >> i think it's amazing that a league that really needs no help, that she moves the ratings the way that she does. it really is quite a compliment to her. so hats off to her. i'm a fan of hers, and really respect what she's done and the businesswoman that she is. >> taylor has already been to three of travis' games, and tonight she was expected to be here. ♪ but tragically, a 23-year-old fan died after her show in brazil on friday night. taylor posting on instagram. and due to scorching temperatures, she postponed her show to tonight.

but even taylor's absence can't dampen the excitement for monday night football. >> we want to show the ups, the downs, the big wide shots where you show the whole place going crazy. it all goes into the documenting of the game. >> derek mobley is the director of monday night football. >> so we have cameras that shoot the game coverage, which is how you see most of the play develop. we have hand-held cameras roving around the fields. >> sideline cameras, sky cameras suspended by cables, end zone cameras. he says over 60 cameras strategically placed around the field. there is no angle mobley can't see from inside the control room. >> i'll be looking at the monitor wall of all the cameras, the graphics. steve eckels will be sitting next to me giving the overall picture, do we want to go to replay, the graphic. >> it's all about representation and execution. and all the planning we have done, let the game come to us. try not to go too fast. >> i think they're ready for

tonight's game. >> troy aikman and joe buck standing by. >> when they kicked that ball off, there is no feeling like it. i would assume there is no feeling like it for the people on the field. but there is also no feeling like it for us in the booth. it's exciting. it's new. it's fresh. it's fun. i can't wait for the game to happen. >> troy, how would you describe eagles fans? >> crazy. every team has their fans. but the eagles' loyal fan base is i think different than the others. >> i've been flipped off by more eagle fans than any other fan base in the nfl. so. >> you sound kind of proud of that. >> i am, i am. >> joe, could you describe chiefs fans? >> chiefs fans are riding high. and i think in their own way, passionate. just as passionate. but i mean, i'm a midwesterner. do things a little different in the midwest. >> yeah, let's go! >> they're two very devoted fan

bases that are all in for this season and beyond. >> patrick mahomes and travis kelce have been the most productive quarterback-receiver combo. >> lisa salters on the sideline, counting down to kickoff. >> there is nothing like it being right down there on the field, seeing the passion, seeing the energy on every single play. >> fans tailgating. the excitement building. then finally, after all the preparation, game time. the game a thriller. eagles fans flying high tonight after the win. and for football fans, the magic of monday night never ceases to amaze. what is it about football? it's so much more than just a game. it's really not about the game. it's about the people playing the game.

>> juju: our thanks to rhiannon. when we return, the tech mogul who believes he can reverse the aging process. type 2 diabetes? discover the ozempic® tri-zone. ♪ ♪ i got the power of 3. i lowered my a1c, cv risk, and lost some weight. in studies, the majority of people reached an a1c under 7 and maintained it. i'm under 7. ozempic® lowers the risk of major cardiovascular events such as stroke, heart attack, or death in adults also with known heart disease. i'm lowering my risk. adults lost up to 14 pounds. i lost some weight. ozempic® isn't for people with type 1 diabetes. don't share needles or pens, or reuse needles. don't take ozempic® if you or your family ever had medullary thyroid cancer, or have multiple endocrine neoplasia syndrome type 2, or if allergic to it. stop ozempic® and get medical help right away if you get a lump or swelling in your neck, severe stomach pain, or an allergic reaction. serious side effects may include pancreatitis.

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he once owned venmo, but now bryan johnson says his most valuable asset is time, and he wants to acquire as much of it as he can with a modern-day fountain of youth, a plan he calls project blueprint.

here is abc's eva pilgrim. >> right now is the very first time in human history where you can say with a straight face you may not die. >> reporter: you believe that? >> oh, there is no question. >> reporter: it's hard to believe tech millionaire bryan johnson is 46 years old. but no matter his chronological age, he is striving for the biological age of an 18-year-old. his team of 30 doctors utilize all the latest tech. the plan is rigorous. it's actually really hard. >> yeah, it is. and it burns really fast. >> reporter: at $2 million a year, a life like this is out of reach for almost everyone. >> and this is what i take on a daily basis of supplements. it's alphabetized and we have a yearly supply. >> it's part of his quest to live forever, which he believe mace happen in our lifetime. >> what i've shown is for the very first time, we could potentially think about ourselves improving at the speed of technology. >> reporter: on this day at his

home in los angeles, he lets us in to his pricey routine and his excitement for the future of the human race. >> i'm the first human to opt into an algorithm that takes better care of me than i can myself. >> reporter: he calls his all encompassing protocol project blueprint. >> blueprint was born out of trying to fix my own problems, but then taking care of my family, my kids and parents and friends. >> reporter: it's generated a steady turn of shock headlines. he once injected himself with his son's plaza. >> the way that happened is my dad is now 70. one day we were talking on the phone. dad, also, there are these plasma exchanges people have been doing that have shown some evidence that is potentially helpful with people with cognitive decline. it's still experimental. it's not iron-clad yet. but if you want to try it, i'd be more than willing to offer you my plaza. my son heard and said dad, i'm in. he did it knowing full well what he is doing.

>> reporter: he recognizes how insane this all sounds. >> the perceptions people have about blueprint and me are all wrong. they think i live in a cage. they think that i'm somehow deprived of joy. they think that somehow i just don't understand their joy of pizza and donuts. they think i don't understand. but i do. i understand all of it. i've been where that person is at. do you eat pizza and donuts? >> i don't. they sound awful to me. it would make me feel sick and i would feel miserable for 24 hours. >> reporter: he wasn't always this happy or this rich. growing up in a modest mormon household in utah, at 21, he returned from a mission trip to ecuador and came back with one goal in mind. >> the only thing i wanted to do with my life was trying to improve the human race. >> reporter: so you set out on that mission? >> i said okay, i'm going make a goal and make a whole bunch of money by the age of 30. with money, you can mobilize things more effectively versus having to ask people permission for what they would want to do

in the world. >> reporter: so how did you make it happen? >> i just started building companies. i then bought venmo, and we got for just under a billion in 2013. >> i read that you were really unhappy during that time. >> i was born into a religion that's very tight knit. basically, it consumes your entire identity. and then i got married. i had children. i was doing the start-up. and those worlds kind of combined. so the lack of sleep and the grind on a start-up created some depression which deepened when i was having a crisis with my religion. having problems with my partner. >> reporter: how did you get yourself out of that? >> when i was 34 years old, i in one year's time, i sold my company. my marriage ended. i left the church, and i went off to remap my whole existence. >> reporter: welcome to the future. caution, may cause loss of age. as we enter brian's clinic. >> this uses multispectral

imaging and generates 10 data points on your skin health. >> we see a room full of high-tech hospital-grade gear chosen to measure his progress and hopefully turn back the hands of time. but bryan believes it's not about what you start doing, it's what you stop. >> instead of doing something positive, stop the negative. so instead of trying to choose a supplement that you want to take, stop going to bed late, or stop skipping exercise. is oftentimes, stopping is more powerful than starting. >> and it's about where you may live and what you eat. >> in blue zones, we're seeing people who live below the u.s. poverty line living about 10 years longer than americans. >> reporter: author dan buettner has written extensively about so-called blue zones, but said living longer doesn't are to be so complicated. >> we know for example people who eat beans, beans are the cheapest food in the grocery store live about four years longer than people who don't eat beans.

so i'd much rather see people eating beans than shooting themselves up with other people's blood. >> reporter: bryan says his pricey investment in himself has turned back his biological clock by five years, and he hopes to live a long life with the people he loves. >> i'm just so happy i get to exist. i'm so pleased that i'm alive. and i just want to keep on playing. and i hope others do too. >> juju: our thanks to eva. thus far there is no definitive research that has proven any medicine or any device can reverse the effects of aging on n a meaningful way. when we come back, a love story for the ages. rosalynn and jimmy carter. i prep without pills. with apretude, a prescription medicine used to reduce the risk of hiv without daily prep pills. with one shot every other month, just 6 times a year. in studies, apretude was proven superior to a daily prep pill in reducing the risk of hiv.

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and finally tonight, remembering a first lady. they met as children. their 77-year marriage full of charm. >> i look forward to consulting closely with him on a regular basis. >> president carter often asked rosalynn to sit in on capital

meeting and represent him on foreign trips. just after he was elected president, barbara walters talked to the couple. >> why aren't you ever bored with each other? what keeps it going? >> i think we both lead very interesting lives. we can come home at night. he wants to know what i'm doing. i want to know what he is doing. it's just an exciting life. >> 44 years in 2021, they told steve osunsami the magic was still there. >> what advice do you have for people who want to make it last? >> first of all, choose the right person to marry. rosalynn said okay, finally. and staying this long has been the most wonderful thing in my life. >> he is pretty wonderful in my life too. >> and what a wonderful life. that's "nightline" for tonight. you can watch all of our full episodes on hulu. thanks for joining us. good night.