There are lots of life hacks that, while interesting, still require something extra - an object or gadget - that you need before you can do anything. Have you ever wondered if there are hacks that don't require anything but yourself?It turns out that there is such a thing as "body hacks." Most are very simple, and all are things that you never would've thought of but make your life better in a bunch of little ways. The best part? No purchase required - all you need is yourself. (source YouTube)These hacks are super easy and incredibly useful. It really...