Even among people in their 50s, some are prone to fatigue and weight gain, while others remain agile and sharp-minded. This ...

Irisin, a hormone also known as FNDC5, has been linked to many of the positive benefits associated with physical exercise. In the past year, a controversy erupted over possible flaws in the methods ...

A team at the University of California, San Francisco has identified a specific liver-produced enzyme that explains, at the molecular level, how physical exercise protects the aging brain from ...

A new study offers clues as to why exercise can improve neurological symptoms in people with multiple sclerosis (MS). The study, led by investigators from Mass General Brigham and University Medical ...