Latest Fitness & Exercise Stories
When you get a stitch in your side, what’s really going on?
The Apple Watch can tell if you wipe out while biking or running. Here’s how.
Why do my muscles ache the day after a big workout?
Is it safe to lift weights while pregnant?
Everything you’ve ever wanted to know about muscles
Why can’t we all touch our toes?
What muscles do squats work?
This protein may hold one of the secrets to predicting muscle growth
The three strength exercises everyone should do
How does menstruation affect my muscle performance?
Swimming is the ultimate brain exercise. Here’s why.
What extreme heat means for the future of the Summer Olympics
What actually works for muscle recovery—and what doesn’t
How to choose the perfect workout routine
Compression tights might not actually help tired muscles
Jumping rope is an unbeatable cardio workout—if you do it correctly
Why 10,000 steps a day isn’t the secret to better health
How to fit in a workout while you travel
Why are humans good at endurance running? The answer is murky.
What running ultramarathons and giving birth tell us about the limits of human endurance
The weirdest things we learned this week: Feminist butter sculptures and America’s first favorite pastime
When it comes to fitness trackers and health apps, the FDA says you figure it out
Muscle stiffness can be an athletic superpower
A guide to safe outdoor activities during the coronavirus pandemic
How elite drivers train to endure the punishing conditions of pro racing
Five beast-mode workouts PopSci editors are doing from home
The weirdest things we learned this week: 10k steps a day is totally made up and Charmin knows exactly how you poop
Try this illusion on the treadmill and running will never be the same
Running a marathon in space made me finally appreciate gravity
Hate the gym? Grow a garden instead.
Late-blooming exercisers may get the same benefits as lifelong gym rats
How to bike responsibly during a pandemic
The hardcore science of parkour
Burpees are hard to define, and that’s what makes them good
I zapped my muscles to get swole and it sort of worked
How to work out your pelvic floor (and why everyone should)
Here’s why gym clothes smell so rank—and how to freshen them up
Exercise really does seem to help with depression
7 iconic movie training montages ranked by professional trainers
The weirdest things we learned this week: killer surgeons and mysterious floating feet
How to make exercise a regular part of your life
Your guide to riding a bike again
These ultramarathoners say life is easier after running 40 miles on frozen backwoods trails
Here’s how much exercise you should get—and why it’s okay if you fall short
7 mistakes beginner cyclists make, and how to avoid them
Baby, We Were Born Not to Run
Is it possible to be too flexible?
This quick workout will help your sore hips and back
PopSci 5-Minute Project video: CD dumbbell
A Single Bout Of Exercise Can Make Your Flu Shot More Effective
To Your Brain, A Runner’s High Looks A Lot Like Smoking Weed
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The weirdest things we learned this week: Lady Liberty’s big secret, the ultimate exercise hack, and a penis in a bottle
Fitness trackers turn health into a game that users rarely win
The weirdest things we learned this week: eating organs, celebrating sweat, and banning dogs
Placebos really can help your fitness
Sorry, hot yoga fans. Sweating doesn’t cleanse your body.
How to stretch for any type of workout
Why chocolate milk is a great post-workout snack (but maybe not the best)
Why (almost) everyone needs to stretch when they exercise
The safest ways to exercise during a pandemic
Eliud Kipchoge just ran a marathon in less than two hours—how much faster does science say humans can get?
A few simple habits can tack some extra years onto your lifespan
Science helped me run my first marathon in 3 hours and 21 minutes
Here’s what the U.S. Army’s new gender-neutral fitness test will look like