Athletic Performance

Athletic Performance

Zone 2 Training: The Science Behind Easy Cardio for Longevity

What Zone 2 training is, what research says about mitochondria, fat oxidation and longevity, and how it fits with high-intensity work.

Athletic Performance

Resistance Training and Sarcopenia: Why Strength Is a Longevity Skill

Sarcopenia, age-related muscle loss, is preventable and treatable. Here's what research says about resistance training at any age.

Athletic Performance

Collagen Peptides: Do They Help Joints, Tendons and Skin?

What randomized trials say about collagen peptide supplements for tendons, joints, skin and strength, and how to think about quality.