What? It's not true?

Let me know your thoughts. Good or bad. I can take it. Most likely. Since people began telling you things, you've probably believed them. They mostly came from your parents. Why wouldn't you? Things like "don't crack your knuckles, you'll get arthritis." Well the American Board of Family Medicine says no, it doesn't. There's a bunch of other things you've probably thought to be true. But they're not. All that in just twenty minutes. Thanks f...