Sex will bring physical pleasure to the couple at the same time, but also on the brain will have many positive effects. High quality sex is more conducive to creating happy, confident and optimistic emotions more beneficial to the brain, during sex the brain will experience a variety of chemical reactions, some of which can help exercise thinking skills, can make people happy, while improving creative thinking and logical decision-making. But excessive sex can also cause some damage to the body and mind, or can affect the intelligence, so sex is good again, but also to stop.