Head Trip

Is butter a carb?
Everything worth knowing about macronutrients.
By Claire MaldarelliJanuary 31, 2018

Astronauts lose weight in space, and it might be because their food is literally floating around inside them
Stomachs weren't built for space.
By Mary Beth Griggs
The world's strongest athletes aren't shredded and for good reason
A belly isn't a big deal when you're eating 5,000 calories a day and lifting more than 1,000 pounds.
By Stan Horaczek
Your weight affects how long you live—but it's extremely complicated
There's probably no perfect BMI.
By Claire Maldarelli