There are so many reasons to why you should be having more sex. It's a stress-reliever, and it's fun. But getting hot and heavy in bed has another upside to it.

According to a recent animal study published in the journal Brain Research, sex may boost brainpower. Researchers from Korea conducted a series of experiments on mice for this study, to see how their brain activity changed in response to getting busy.

It turns out that sex increased the mice's neurological activity for more than 24-hours after the act. The heightened brain stimulation was still present even when mice underwent stress tests after having sex.

Clearly, the mental capacity of mice isn't the same as it is for humans, but it's a good enough reason to indulge in some quality time between the sheets.