HIIT—or high intensity interval training—has been the buzziest sweat method for a while now. These fast-paced workouts alternate short bursts of exercise with quick recovery periods, and torch more calories in less time than traditional steady-state training sessions. HIIT has been shown to boost metabolism, melt fat, build muscle, and more—and now, Mayo Clinic researchers have discovered yet another benefit: it can reverse signs of aging at the cellular level.
The study, published in the journal Cell Metabolism, involved 72 sedentary adults in two age groups—young (18 to 30) and older (65 to 80).
