A new study has found that sex might actually make you smarter.

Researchers (in Maryland and South Korea) recently found that sexual activity in mice and rats improves mental performance and increases the production of new neurons, where long-term memories are formed.

Middle-aged rats permitted to engage in sex showed signs of improved mental function.

Sexual activity also counteracts the memory-robbing effects of chronic stress in mice, but some researchers claim that excessive porn viewing, like other addictions, can result in permanent harmful changes to the brain.

** Also being smarter does not mean you'll have more sex. In fact, smarter teens tend to delay being sexually active.