Deep in your muscles, an enzyme called AMPD1 helps turn chemical fuel into usable energy. When it does not work well, muscles tire faster. That matters because problems with AMPD1 are the most common ...

People who exercise frequently need to ensure they're getting enough protein in their diet. These 10 foods can help—and are ...

Cold isn’t just a backdrop at the Winter Olympics - it’s an active opponent. As temperatures drop, muscle power, endurance ...

Discover how a simple urinary biomarker is unlocking new insights into muscle strength, bone health, and physical fitness in young adults, paving the way for better health monitoring and interventions ...

Discover how timing your workouts can boost performance and help you get stronger.

If you’ve ever worried that a rest day might erase your progress, take a deep breath — research shows the exact opposite. Recovery is where the real gains are made for your fitness. Strength training ...

Magnesium is everywhere in fitness supplements, but not all forms work the same. Here’s how to choose the right type for ...