We've all heard the myths and rumors. Smoking weed will make you dumb, all that beer is going to rot your brain. What if I told you that wasn't true?

  • Drinking alcohol. The rumor that drinking alcohol kills your brain dates back to Prohibition. Studies in 1993 concluded that this was not true, it showed no difference between alcoholics and non-drinkers.
  • Smoking marijuana. There's little evidence that any of the active ingredients in marijuana have any neurotoxic effects. Some say that it actually does more good to an adult brain.
  • Sneezing. Sneezing causes increased pressure in the skull but the tension is not long enough to kill your brain cells.
  • Getting old. Many people just assume that the brain will deteriorate with age. It's not true unless a person develops any cognitive disorders.

Read more at MSN