These well-worn theories are among seven "medical myths" exposed in a paper published Friday in the British Medical Journal, which traditionally carries light-hearted features in its Christmas edition. Two U.S. researchers took seven common beliefs and searched the archives for evidence to support them.
* Reading in dim light ruins your eyesight
* Shaving makes hair grow back faster or coarser
* Need to drink 8 glasses of water a day to be healty
* Eating turkey makes you drowsy
* We use only 10 percent of our brains
* Hair and fingernails continue to grow after death
* Mobile phones are dangerous in hospitals
* Can go blind from stroking the chicken too much (I added this one, and I am the scientific proof on this one

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Huh, do you agree and what other ones do you think is a myth?