Before you consider whipping out one of these in front of your friends you may want to do a little research according to an article on Yahoo.

"You know, we only use, like 10% of our brains..."

"Don't read in the dark. It'll ruin your eyesight."

"You should drink at least 8 glasses of water a day."


It turns out these and several other widely held beliefs may not actually be true. The following are things we've been told all our lives but may have very little validity to them if any:

1. We only use 10% of our brains

2. You should drink at least 8 glasses of water per day

3. Fingernails and hair grow after death

4. Shaved hair grows back faster coarser and darker

5. Reading in dim light ruins your eyesight

6. Eating Turkey makes you drowsy

7. Mobile phones are dangerous in hospitals

Want to know the truth? Read more...