Wondering why staying slim feels harder after your teens? Science explains how your metabolism, hormones, muscle mass, and ...

Muscle health is crucial for metabolism, bone support, joint protection, balance, and recovery from illness or surgery.

Losing muscle strength is a natural part of aging. At the core of this decline is a drop in the number of muscle stem cells (MuSCs), the specialized cells responsible for maintaining and regenerating ...

Researchers have identified the brain circuitry that links deep sleep with the release of growth hormone, revealing how the ...

Skeletal muscles—responsible for movement, joint stabilization and postural support—are highly metabolically active and heavily reliant on oxygen during physical activity. However, conditions such as ...

Squats are one of the most effective full-body exercises for adults over 50, helping improve strength, mobility, balance, and ...

Many people trying to lose weight worry that eating less could slow down their metabolism, making it harder to burn calories ...

A new Salk Institute study suggests estrogen-related receptors could be a key to repairing energy metabolism and muscle fatigue. Across the body, tiny bean-shaped structures called mitochondria turn ...

Skeletal muscle relies on tightly regulated iron metabolism to support oxygen transport, mitochondrial respiration and the synthesis of iron-containing enzymes. Iron is stored within ferritin ...

Losing weight after 50 can feel different than it did in earlier decades. The strategies that worked in your 30s may stop delivering the same results as you get older. That’s frustrating, but it’s not ...

Many different factors play a role in your metabolism, including age, muscle mass, how active you are and what you eat. This means all your meals, including breakfast, are important.  “Even when ...