This discovery changes the way scientists think about aging. It suggests that part of what we call age-related weakness may actually be a communication problem between the brain and the muscles. As ...

Unexplained muscle pain in the arms and legs may be the result of benign issues. Or it may point to a more serious underlying condition, such as fibromyalgia, infection, or thyroid issues. Muscle pain ...

The brain controls movement by sending electrical messages through nerves to the muscles. When this communication becomes weaker with age, the muscles may not respond with full strength even if they ...

PAF causes strong contractions—especially in the muscles of the esophagus and the stomach’s upper region (called the gastric fundus). In other parts of the intestine, such as the small intestine and ...

Muscles make up nearly 40% of the human body and power every move we make, from a child’s first steps to recovery after injury. For some, however, muscle development goes awry, leading to weakness, ...

A new study suggests that muscle strength, particularly grip strength, is associated with longevity and could offer a practical screening tool for aging-related risk.

Kirstyn Hill has worked as a clinical pediatric and women’s health pharmacist since 2020. She was driven to work with a patient population that is not often able to easily speak up for themselves and ...

A gene known as ACTN3 (α-actinin-3) has earned the nickname “the gene for speed,” and it may have an influence on how androgens work through the androgen receptor to maintain muscle mass. Research has ...