A top Marine shares his secrets to keeping fit at 50

Tech Insider : Business
The US Marine Corps' top enlisted leader, Sergeant Major Carlos Ruiz, plays frisbee with Marines,
The US Marine Corps' top enlisted leader, Sgt. Maj. of the Marine Corps Carlos Ruiz, plays frisbee with troops,

GySgt Jordan E. Gilbert/US Marine Corps

3 ways to add beans to your meals for protein, fiber, and flavor, according to a private chef-turned bean company CEO

Tech Insider : Business
A woman holds a jar of butter beans.
Beans are a good source of both fiber and plant-based protein.

Clara Moro

Five newly discovered life stages of your brain include a prolonged adolescence from age 9 to 32

Tech Insider : Business
human brain
Scientists at the University of Cambridge have identified five distinct eras of brain aging from childhood to old age.

boonstudio/Getty Images

A doctor in her 40s uses 3 science-backed products to prevent wrinkles. She combines Korean and Western techniques.

Tech Insider : Business
A woman smiling.
Dr. Christine Hall grew up in the UK but spent the summers in South Korea with her Korean family.

Hind Abib

Linda Hamilton, 69, says she doesn't want to 'chase longevity'

Tech Insider : Business
Linda Hamilton.
Linda Hamilton, 69, says she isn't chasing beauty or longevity.

Michael Buckner/Variety via Getty Images

She avoided sports most of her life but became a champion athlete in her 70s. 'It's never too late to start something new.'

Tech Insider : Business, Sports, Style
Carol Klenfner in blue shirt and black pants playing ping pong.
Carol Klenfner has found a renewed sense of competition after picking up ping pong later in life.

Mark Adam Miller / Business Insider

A 55-year-old health founder shared 55 reasons he feels his fittest, sharpest, and happiest. 5 tips could add 10 years to your life.

Tech Insider : Business, Environment, Sports
Kevin Dahlstrom pictured bouldering.
Kevin Dahlstrom bouldering.

Matt Anderson

79-year-old competitive powerlifter shares his 15-minute core morning workout routine for fitness and longevity

Tech Insider : Business, Style
Tom Rauscher at the gym doing a V-up.
Tom Rauscher doing one of his 300 V-ups for the day.

Mark Adam Miller

I'm 87 and not planning to retire anytime soon. My tips for a long life are to follow your passion and not measure success by money.

Tech Insider : Business, Travel
A senior, wearing a baseball cap, stands by a photograph of a cowboy.
Robert Osborn with one of his photographs

Courtesy of Rheanna Menges

Novak Djokovic is winning titles at 38. He credits his longevity to 3 simple things.

Tech Insider : Business, Style
Novak Djokovic of Serbia celebrates after winning against Nuno Borges of Portugal during the Hellenic Championship ATP 250.
Novak Djokovic celebrates after winning during the Hellenic Championship in November 2025.

Costas Baltas/Anadolu via Getty Images

Subscribe to Longevity