After an 8-week diet, metabolism ran more than 100 calories below predicted levels. A year later, things changed in a big way. Here’s what to know about weight regain and weight loss results that last.
A Harvard diet score is useful for rating whole diets but confusing food by food. Here’s how to read these lists without getting fooled.
Cortisol gets blamed for stubborn weight, but it's not the reason the scale changes. If you're targeting cortisol with supplements and tests, odds are you're wasting time and money.
Critics called Arnold's landmark AB 32 law impossible. It hit its target four years early. Learn the 6 rules for following through on your most ambitious goals.
A 3-year walking-based exercise program cut colon cancer recurrence, new cancers, or death. Here’s how much movement it took.
Some tracker users sleep better, and nearly as many say tracking makes them worry more. Here's who's at risk, and four ways to fix it.
Why waiting and speculating wears you down, and the move that helps you stress less and move beyond frustrating situations.
Two major reviews said collagen improves skin. An audit of the original trials found the math didn't hold. Here's what we got wrong and what's still unknown.
Arnold has a full home gym he rarely uses. Here's why he rides to a crowded gym every morning, and why finding your "village" is a competitive advantage.
A review of 226 studies tied higher BMI to 19 cancers. See which ones, why waist size may matter more for lifters, and what you can do to reduce your risk.
Resting a pulled muscle feels smart. In one trial, an extra week of rest added three weeks to recovery. Here's what helps a strained muscle heal faster.
Data from more than 2 million adults links bigger weight loss to more vitamin deficiencies. Here's what you need to know and how to avoid your blindspots.
