A recent study found that people who have sex regularly or have a lustful mindset performed better during analytical problem solving tests.
University of Amsterdam researcher Dr. Jens Forster, who led the study, presented a number of participants with problems that required them to use their critical thinking skills, MSN’s Kristin Wong reported. As a result, the subjects who had sex on their minds outdid those individuals who weren't feeling lustful.
Similar studies in the past at other universities used rats to measure the correlation between sex and brain activity. In short, sexually active rats had better cognitive function. The rats with no access to sex appeared to be more stressed when placed in a different environment.
So if sex is responsible for releasing positive chemicals into your body, that could be the very reason you are feeling happier, the study notes. At the same time, you may be improving your brain cell function.