Kevin Hart works out like a pro athlete. His trainer says heavy lifting isn't the key to staying shredded.

Tech Insider : Business
Actor and comedian Kevin Hart poses on the red carpet at a Golden Globes event in a suit.
Kevin Hart has been committed to a disciplined workout plan for years.

Gilbert Flores/Penske Media via Getty Images

I'm 81 years old, and I still love going to the gym. It's helped me stay social and physically healthy.

Tech Insider : Business
Cynthia Wall in the pool at her gym with a friend
The author (right) has been going to the gym for decades and is now 81.

Courtesy of Cynthia Wall

Successful women say exercise is a core part of their routines. Their essentials include Alo Yoga clothes and an Oura Ring dupe.

Tech Insider : Business, Sports, Style
Cropped shot of a woman holding dumbbells, yoga mat and sports water bottle in her hands.

Getty Images; BI

I lost 200 pounds by doing hot yoga and lifting weights. I went from a 4X shirt to a medium.

Tech Insider : Business
A split image of a man before and after he lost 200 pounds.
Edward Adegeye before and after losing more than 200 pounds

Courtesy of Edward Adegeye

Elite athletes use the 4 p.m rule for better hydration and performance, says a top nutritionist

Tech Insider : Business, Sports
An athlete backlit by the sun drinking water.
Athletes need to drink more water the harder they exercise, but too much late in the day can disrupt sleep.

Juan Jose Napuri/Getty Images

One fitness supplement can help you build muscle and maybe boost longevity without breaking the bank, according to experts

Tech Insider : Business, Sports
A person scooping a supplement powder into a clear plastic cup.
Creatine is one of the most researched fitness supplements on the market. it offers a lot of value for its low costs, according to trainers and sports nutritionists.

Farion_O/Getty Images

I'm the CEO of Crunch Fitness. I stay fit on a busy travel schedule with a morning protein shake and Pilates classes.

Tech Insider : Business, Sports, Travel
Crunch Fitness CEO Jim Rowley stands in a blue suit in front of the Crunch logo
Jim Rowley, CEO of Crunch Fitness, said he stays sharp by avoiding a monotonous routine, but he always makes time for exercise and a morning protein shake.

Courtesy of Crunch Fitness

A man lost 44lbs and learned 3 important lessons about losing fat while maintaining muscle

Tech Insider : Business, Style
A man wearing a black T-shirt smiles.
Mike Prytkov founded a weight-loss app inspired by lessons he learned from his own weight-loss journey.

Mike Prytkov

4 tips to build muscle at the gym from one of the world's most decorated Olympians

Tech Insider : Business
Olympic swimmer Katie Ledecky in a cap, goggles, and swinsuit holds an American flag after setting a new record in the Women's 800 Freestyle Final in 2025
Katie Ledecky of Team United States reacts after winning gold and setting a new championship record time of 8:05:62 in the Women's 800m Freestyle Final on day 23 of the Singapore 2025 World Aquatics Championships at World Aquatics Championships Arena on August 02, 2025 in Singapore.

Airbnb CEO says he was self-conscious about working out when he first got to Silicon Valley. Times have changed.

Tech Insider : Business, Sports, Style
Brian Chesky
Brian Chesky said no one was weight lifting when he came to Silicon Valley in the 2000s.

Myunggu Han/Getty Images for Airbnb

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