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

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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.

America wants to party — just softer

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A hand holding a small disco ball in palm

Getty Images; Tyler Le/BI

Retired Navy SEAL Jocko Willink shares 5 exercises you can do anywhere to build muscle, burn fat, and live longer

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Jocko Willink in black dress pants and a collared shirt.
Entrepreneur Jocko Willink starts his day at 4:30 a.m., a habit he picked up in the Navy SEALs.

Courtesy of Jocko Willink

To build muscle, you need a 'de-load' week. Here's how a powerlifting doctor strategizes rest for maximum gains.

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Dr. Shernan Holtan jumping rope at a CrossFit gym
Dr. Shernan Holtan does powerlifting and CrossFit to stay healthy. She said taking a break from exercise with regular "deload weeks" helps to build muscle and strength while preventing injury.

Courtesy of Roswell Park Comprehensive Cancer Center

An athlete turned CEO says rucking — the fat-burning workout du jour — helps him stay in shape without sacrificing calls and meetings

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A headshot of CEO and former NFL player Jeff Byers shows him smiling at the camera, wearing a baseball cap and grey T-shirt.
CEO Jeff Byers is a former NFL athlete and said he fits exercise into his busy schedule by rucking during meetings and calls.

Courtesy of Momentous

3 exercises you should be doing to build muscle, according to the World's Strongest Man

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Strongman Brian Shaw lifts a log labeled The Austrian Oak weighing more than 400 pounds overhead at a 2017 competition.
Professional strongman Brian Shaw said to prioritize exercises like squats, weighted carries, and sandbag lifts for building strength and muscle.

Icon Sportswire/Getty Images

Kettlebells can help you gain muscle and cardio fitness at the same time. Here's what to know, according to a world-record athlete.

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Canadian athlete Jennifer Hintenberger performing heavy kettlebell exercise at competition.
Kettlebell exercise can help you build strength and muscle, while also improving your cardio and developing core stability at the same time.

Courtesy of Jennifer Hintenberger

Forget crunches — elite gymnasts share 2 tips for better core workouts

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Gymnast KJ Johnson performs a gymnastics floor routine in a purple and gold leotard
KJ Johnson, a gymnast with the NCAA Champion team at Louisiana State University, shared her go-to exercise for a stronger core.

Georgia Jones/Courtesy of KJ Johnson

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