How the Menstrual Cycle Affects Athletic Performance
After an exhaustive search of the literature, researchers conclude that, well, it's complicated
Training & Performance
The Difference Between Effort and Pain
When the going gets tough, which sensation actually slows you down?
A New Theory on Exercise's Anti-Cancer Effect
The ability to sustain a high rate of energy burn for a prolonged period of time may help ward off cancer
What Physiologists Learn When Humans Race Against Horses
The hotter it is, the closer we come to the ever elusive goal of besting the horse—which supports the evolutionary "born to run" hypothesis
Get Ripped with This No-Equipment 6-Move Workout
Use tempo and isometrics to improve your bodyweight routine
The Athlete's Guide to Boosting Iron
Three new studies explore iron patches, injections, and dose frequency
Reconsidering the Benefits of Heat Training
Sweaty workouts do enhance your endurance, according to a new theory, but it may take longer and function differently than previously thought
This Guy Finished 105 DIY Ironmans in Two Years
To mark the start of his sixties, Will Turner swam, biked, and ran 14,765 miles, many of which took place through iconic national parks and public lands. Here are the most stunning photos from his "races."
Quantifying the Benefits of Drafting for Runners
A new aerodynamic analysis runs the numbers on exactly where to run when you’re behind someone else
This Stability Ball Workout Is Much Harder than It Looks
Put that bouncy desk chair to work with this full-body strength routine