Interval training provides an anaerobic workout as opposed to the aerobic workout accompanying steady state cardio
. This means the body relies on cellular tissues to fuel the muscles instead of oxygen. This extreme level of stress on the body causes the body to produce excess levels of catecholamines and growth hormone, our best fat fighting friends. It has been reported that levels of these hormones stay elevated far above baseline for up to 72 hours after the session. This means you will burn extra calories for the next 3 days! It's clear why this is such an effective technique. While you may burn the same amount of calories during interval training as you would during steady state cardio, you continue to burn calories long after your interval training. This makes it possible to burn thousands of calories from one single cardio session! Wouldn't you say this sounds like the "best waist exercise"? Don't just take my word for it, try it yourself. Do this 3 times a week for the next month and watch the beautiful results!