This tiny bit of the brain could offer clues about addiction
Brain and central nervous system (Shutterstock)

It's responsible for getting you to stop doing things. Pinning down the way the brain handles inhibition has implications for ADHD and addiction. Jeffrey Hatcher via Flickr CC By 2.0 Neuroscientists know a lot about what happens in the brain when someone decides to do something, like reach for a cookie on the office snack table.