It's hard to tell fact from fiction these days. And some myths even stick with us our whole lives. Remember when you used to believe it took seven years to digest a piece of gum? Here are six more common myths you might still buy into...
1. "Adding salt to water makes it boil faster."
It actually takes longer to boil water with salt. But it's such a small difference anyway, it's hard to notice.
2. "Cracking your knuckles causes arthritis."
No matter how many times your mom told you that one, scientists haven't found a link.