Things You Thought Were True as a Child...and Still Believe to be True Now

Each day I hike my unfit body up 119 stairs and a monstrous hill, avoid sprinklers that are, for some strange reason, on at 9 a.m. and 12 p.m., and try to avoid stepping on all the bugs that crawl beside me. This morning I saw a daddy long leg running up the hill.

When I was little, my parents, brother, teachers and friends told me daddy long legs are the most poisonous spiders on earth, but because their mouths are so small they can't bite humans. As I walked to work this morning I thought about this and concluded there was no way a daddy long leg could be so poisonous. After a quick Google search I found thousands of articles and websites that say this myth is false. This was my favorite: http://spiders.ucr.edu/daddylonglegs.html. Then I started thinking: where do we get these weird ideas that myths are true? 
Did your parents ever tell you popping your knuckles would give you arthritis, shaving would make your hair come back thicker or swallowing a watermelon seed will make it grow inside you? Here are some myths I believed when I was younger:

1. Cracking your knuckles will give you arthritis 
2. Shaving your legs will make the hair come back thicker
3. Swallowing a watermelon seed will result in watermelons growing in your stomach
4. Bees won't sting you unless you provoke them
5. Bugs are attracted to blond hair
6. You will get the flu if you go outside without a coat
7. Playing video games will make you go blind
8. If you swallow a piece of gum it will stay in your stomach for seven years
9. Caffeine will keep you from reaching puberty
10. Eating vegetables will put hair on your chest (Okay, I didn't believe this, but my dad ALWAYS said it)
11. If you go swimming in the pool after you eat you'll throw up

I'm sure there are more myths I believed when I was a kid and probably even more I believe today, which is why I think it's interesting we believe things even without evidence. I still believe gum will stay in your stomach for seven years, Top Ramon Noodles will never fully digest and reading in dim light will make you go blind.