You know you should develop a regular exercise routine, but you lack motivation. Promises to yourself are quickly broken, and you never establish enough of the workout habit to experience any rewards.

Named the top fitness trend for 2018, HIIT involves going hard for, say, 30 seconds, then easy, hard, then easy, and so on—as ...

Dr. Grover Smith, right, works out with exercise scientist Dr. Irv Rubenstein, left, at STEPS Fitness, Wednesday, Feb. 12, 2025, in Nashville, Tenn. You know you should develop a regular exercise ...

This is an archived article and the information in the article may be outdated. Please look at the time stamp on the story to see when it was last updated. You know you should develop a regular ...