YouTube is an incredible thing. You can watch just about anything on it; whether it's a cat that eats with a fork, how to paint your umbrella, or celebrities in Japanese commercials, there is seemingly something for anything you could possibly search for. For me, the tunnel I always end up going down on YouTube is with medical videos. What started as a I to learn how to stretch and touch my toes became a game of being drawn to videos in the sidebar and watching people having their spines re-aligned before you know it. And while some of the stuff I see could make you wish you hadn't eaten your lunch, there are some quite amazing medical finds on YouTube. On this list you'll see 7 that go from top to toe and in between. BE WARNED THOUGH: some of these aren't for those who get easily queasy.