The amazing thing about HIT (High Intensity Training) for weight loss, is that I can generally get patients who hate exercise to do it, because it’s only 20 seconds of exertion. For most patients, the “I don’t want to do this anymore” signal from the brain (this is real, not imagined, it’s been studied) doesn’t kick in until after the 20 second mark. For significant health benefits, all you need are 3 – 20 second bursts of HIT a day. It’s incredible how 20 seconds of exercise, without breaking a sweat, can help weight loss. Google Fast Exercise and High Intensity Training.