You remember doing sprints for high school sports. They hurt—and
that's why most of us would do anything to avoid heading to the
track. New research from health and fitness expert Phil Cambell,
however, shows that anaerobic activities like interval workouts
cut more body fat than long aerobic activities like
jogging—while increasing lean muscle mass. On top of those
benefits, "anaerobic exercise—hard and fast, sprinting types of
exercise—is shown to make the body produce significant amounts
of anti-aging growth hormone, says Campbell. Now, where's that
box jump?