Over the past few years, McCastle has completed 5,804 pull-ups in a single day, pulled a 5,000-pound truck across the Mojave Desert, and climbed a rope the equivalent height of Mount Everest. How on earth has this Navy SEAL dropout accomplished some of the craziest physical feats in recent memory?
Through the moving story of a widowed astrobiologist and his unusual son, ‘Bewilderment’ addresses our apathy in the face of environmental disaster
A new study investigates how different types of physical performance are affected by the time of day
A new study suggests that hydrogels enable you to down more carbs with less digestive distress, and race faster as a result.
Get these six items to improve your sleep and wake up ready for anything
A long-running gym debate about whether to train each limb separately comes to the cycling world
If it seems like you’ve been hearing about lakes and beaches closing down more often, you’re right. Various types of toxic algae are multiplying like crazy in bodies of water across the country, and stopping them won’t be easy.
Endurance-science experts explain the world record holder’s incredible marathon dominance
Lyme-carrying ticks are a bigger threat than ever. A promising new antibody treatment looks to stop infection—even after a tick bite.
After years of debate on the dangers of “too much exercise,” researchers sum up the state of current knowledge
In her new book, ‘The Joy of Sweat,’ Sarah Everts answers all of our writer’s questions about perspiration
As events as big as the Olympic Trials get rescheduled because of heat, we went to the science to find out how you should decide when it is too hot to run safely
It turns out we have a lot in common
Exercise may not be enough to make up for thru-hikers’ bad diets, a new paper suggests
The nonprofit Native Skywatchers has spent more than a decade collecting and preserving Indigenous star knowledge. Now organizations like NASA and the NPS are joining the movement.
A new study shows measurable gains in strength from a purely imaginary training program
The later moon missions didn’t grab as much attention as the first landing in 1969, but they had something very cool on the gear front: the lunar rover, a lightweight go-kart that gave crews unmatched mobility on another world