In short, nothing good—and just one bad night can trigger a cascade of scary side effects
Don't overlook the most important part of your training cycle
For the first time, the International Olympic Committee is researching what it takes for new moms to return to high-level competition
An otherwise fit 42-year-old, I had the range of motion of a sycamore.
The entrepreneur believes that biohacking can rocket your body and mind to peak performance. His Bulletproof diet zoomed into the mainstream, his Bullet-proof coffee has everyone quaffing butter, and his Bulletproof books fly off the shelves. Now Bulletproof Labs is out to hack, well, everything.
She's one of the world's best cyclists, and she has her routine dialed
The tools that help her train for one of running's biggest marathons
The secret is in the toppings
When in doubt, reach for these science-backed ingredients
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