Experienced and novice runners should just trust their instincts, says a new study.
Robert Marchand, who recently set a new record for centenarians, appears to be getting fitter as he ages.
A new book, The Haywire Heart, examines the symptoms, prevention, and treatment of a condition dubbed “athlete’s heart.”
Do you know how to time your cardio versus strength workouts? Here’s what our expert recommends.