With all the talk about self-improvement these days, people don't pay enough attention to self-worsening. In fact, there are many common behaviors that have been shown in one or more studies to make people stupider.
You can start by turning off most TV shows.
As a follow-up to our 25 ways to boost your intelligence, we've compiled a list of things that decrease intelligence or IQ or cause neurological decline.
1. Watching Reality TV
An Austrian study showed participants a reality-like show and asked them to take a knowledge test immediately afterward. Those participants fared worse than those who had not seen the reality show beforehand.