muscles

I don't mean alternating upper body vs. lower body. I'm asking if there's any evidence that light (not pushing to failure) strength exercises work if you do them daily. In basic training, I don't think soldiers take a break from pushups and chin-ups and whatever torture drill sergeants can...

In biology classes I attended the lessons on food and how we use it to move around was glossed over. It went something like: we break down the carbohydrates into glucose which feeds the ATP cycle and muscles use the ATP as an energy currency. Hence we can move. I'm wondering exactly how this...