"Hearst Magazines and Yahoo may earn commission or revenue on some items through these links." Training for longevity has become a major fitness trend—but in health science, longevity means far more ...

Forbes contributors publish independent expert analyses and insights. I write about relationships, personality, and everyday psychology. When it comes to staying active, the biggest challenge often ...

Running, an aerobic form of physical activity, accounts for just one type of exercise that experts recommend all people have on their weekly schedule. The other three? Strength training, flexibility ...