I'm not one for over-promising. The truth of the matter is that in order to have a perfectly sculpted body, you need to get your food intake under control and exercise.

Spend more calories than you take in every single day. It's really the only way. But one exercise stands out from the rest: the humble plank.

You've probably seen people doing this exercise and don't think too much of it. It can't be all that hard, can it? Well, don't underestimate the power of the plank.