Ken Jennings dispels "parent myths"

Remember the things your parents told you? No swimming until an hour after eating. The 5 second rule. Breakfast is the most important meal of the day. You're not fat, you're big-boned. Sit up straight. Slouching is bad for you. Shaving will just make the hair grow back thicker and darker.

Ken Jennings (of Jeopardy fame) has a book out entitled Because I Said So!: The Truth Behind the Myths, Tales, and Warnings Every Generation Passes Down to Its Kids which dispels these myths.

More here.