Comment by watwut

> I've always heard that humans, due to our upright posture, are extremely efficient when it comes to walking and running and so if you want to increase you calories usage via exercise you should lift weights as we are much less efficient at this.

Weight lifting builds muscles. It does makes you more hungry. In addition, you can end up heavier then originally, because muscles weight more then fat. I mean, yes, it will be good weight, the weight composed of muscle, there is no rational reason to go out of way to avoid it. But, it is not loosing weight.