I'd say meditation too, although I've never done any classes. Yoga just makes me more annoyed because when I exercise I want some exertion, not just all the bending stuff - I can already put my legs behind my head, why do I need a class on it that pretends to be exercise? I learnt how to breathe years ago... I'll just stick with aerobics then LOL. But meditation and prayer are great de-stress, relaxation tools.