I was watching a documentary today and it discussed humans not choosing to breathe, we just do. Unlike whales and dolphins who actively choose to take each breathe. If you think about it makes sense they come up for air because of a sense to get air. As humans we don't think about breathing except when we are underwater. So many times we get frustrated and someone will say just breathe and we are relaxed or calm down.
So take a minute and breathe to live..not for any other reason but the most primal reason there is!