When you were younger, you were probably told that drinking alcohol killed brain cells -- and that they were not growing back.
You were probably told this by people with good intentions who just wanted to scare you straight.
Well, scientists have confirmed that there is good reason to be scared -- because your brain stopped making new cells at age 13. After that, no more addition. Only subtraction.
If you're looking for some good news, consider that the average brain has about 100 billion cells. So, depending on how smart you are these days, you might just have a few to spare. (Science Mag)