I’m a Registered Dietitian. “Protein-Maxing” is Slowing You Down
Updated April 24, 2026 01:41PM Of course, there’s no denying all the virtues of protein for runners. The…
Can Supplements Help You Train in the Heat?
Published April 24, 2026 07:01AM Key takeaways: New research suggests that three supplements, berberine, curcumin, and blackcurrant, may…
Astronaut Christina Koch on Artemis II and the Outdoors
Published April 16, 2026 04:27PM On April 10, my family and I sat around the kitchen table, eating…
What to Know About Air Quality When Exercising Outdoors
Published April 8, 2026 03:05PM It’s easy to forget that not too long ago, walking through many U.S.…
Artemis II Astronaut Christina Koch Climbs Rock and Ice on Earth
When not in space, Christina Koch trains for spacewalks and follows her passion around the crags and frozen…
Can Probiotics Help Climbers Better Adjust to High Altitude?
Published April 7, 2026 01:24PM One afternoon in August 2024, high in California’s White Mountains, Tatum Simonson, an…
I Was Attacked by a Walrus While Kayaking in Svalbard
Published April 5, 2026 06:00AM In 2025, a walrus attacked intrepid traveler Ralph Spitzen while he was sea…
3 Walking Workouts From a Personal Trainer
Published April 3, 2026 03:39AM Walking is a stellar form of low-impact cardio any time of year, but…
Does Weight Loss Medication Improve Fitness?
Losing weight doesn’t necessarily make you fitter, a new study finds. (Photo: Oleg Breslavtsev / Getty) Published March…
A 5-Minute Core Workout You Can Do at Home
These moves work every part of your core, boost spinal stability, and lower blood pressure. (Photo: Ayana Underwood/Canva)…
How to Calculate Your VO2 Max at Home, No Lab Tests Needed
Published March 21, 2026 07:16AM It is no secret that cyclists are obsessed with numbers. Everything from power…
4 Ways to Modify the Bulgarian Split Squat to Make It Easier
Published March 17, 2026 03:28AM Along with burpees, push-ups, and deadlifts, Bulgarian split squats are among the exercises…