September 17, 2026 | 08:49 AM

Gretchen Reynolds

Articles by Gretchen Reynolds

If you have arthritis, these activities may lower hip-replacement risk - The Washington Post

Health July 17, 2026

If youre a serious runner, tennis player, backpacker, skier or even ballet dancer, youve probably heard from well-meaning strangers that youre going to ruin your knee or hip joint because of all the �...

Do your hormones help build muscle? The answer may surprise you. - The Washington Post

Health July 9, 2026

Female hormone levels change enormously during the monthly cycle. But those changes have almost no effect on how well womens muscles respond to weight training, a new study finds.

Column | There’s a new way to treat sprains and strains. Hint: Ice is out. - The Washington Post

Health July 2, 2026

A few years back, spectators at an intramural indoor soccer game at the University of California at Davis might have seen Keith Baar, a professor of physiology and membrane biology at the university,�...

Column | Want a younger brain? Exercise in your 40s may help. - The Washington Post

Health June 25, 2026

Regular exercise during midlife makes brains functionally younger. Thats the bracing conclusion of a new study of 130 inactive men and women, most in their 40s. Some began a simple, aerobic exercis�...

Column | This exercise ‘sweet spot’ is linked to greater longevity - The Washington Post

Health June 17, 2026

Whats the ideal amount of weight training if youd like to live long and well? In a new study published this month in the British Journal of Sports Medicine, scientists set out to find the sweet spot�...

GLP-1s may not shrink muscles as much as we thought, study suggests - The Washington Post

Health May 8, 2026

Are GLP-1 weight-loss drugs hard on your muscles? That question has sparked controversy and concern among some scientists, doctors and the general public. Several large studies in recent years had s�...

Want to control your blood sugar? Here’s the best time of day for exercise. - The Washington Post

Health April 16, 2026

Is it better to exercise in the morning or afternoon? Thats a bit of a trick question, because exercise at any time of day is better than no exercise.

At 82, he’s as fit as a 20-year-old. His body holds clues to healthy aging. - washingtonpost.com

Technology February 5, 2026

As a model of successful aging, you cant beat 82-year-oldJuan López García. Really, you cant beat him.

Want a younger, healthier brain? This type of exercise can help. - The Washington Post

Health December 18, 2025

If you need another reason to visit the gym this winter, a new study of almost 1,200 healthy, middle-aged men and women found that those with more muscle mass tended to have younger brains than those�...

How a scientist who studies ‘super agers’ exercises for a longer life - The Washington Post

Health May 22, 2025

Seventeen years ago, Eric Topol, a cardiologist and founder of the Scripps Research Translational Institute in the La Jolla neighborhood of San Diego, set out to discover why some people age so well,�...