If there's one thing worth knowing your facts about, it's hygiene. From an early age, we hear a lot of things about germs that aren't true, but the thing is, we don't know any better. (Think the five second rule holds any truth?) That's why it's totally worthwhile to take a little refresher course on germs and hygiene to ensure you're keeping clean. Check out the video below and get your facts straight. (source YouTube)It turns out we had it all wrong! Sure, it might not be totally okay to eat food after it fell on the ground, but if...