Interval training is the best thing for the body since sliced bread. Want to accelerate fat-burn, boost metabolism, and ramp up overall fitness but don't know your Tabatas from your HIITs? Read on for 8 science-backed ways to get going now.
Ever go to the gym for an hour and hardly break a sweat? Then it may be worth getting a heart rate monitor to help make sure we’re exercising up to speed (and not overdoing it!). But are they necessary for a killer workout?