Cutting calories has long been linked to longer life in lab animals, but scientists are now tracing that effect down to the level of muscle proteins. Instead of simply shrinking our bodies, modest ...

Compounds in green tea can reprogram muscle metabolism to boost insulin sensitivity and glucose tolerance, according to new findings that further our understanding of why this ancient drink has long ...

Muscle contraction is the tightening, shortening, or lengthening of muscles when you do some activity. It can happen when you hold or pick up something, or when you stretch or exercise with weights.