Ways to make people smarter

　　Does a lot of work and information from all sides always make you feel that your brain is about to be "bursted"? Fortunately, scientists are always finding new ways to keep our brains active.

　　According to the British "Daily Mail" report, researchers have found that eating dark chocolate, smiling and having regular sex can make the brain sharper and delay its aging.

　　The theory, developed by a research team of experts from around the world, is documented in a new book called Self-Study and Brain Training. Research has found that dark chocolate tops the list of foods that increase gray matter in the brain. The magnesium and antioxidant flavonols in it can increase the amount of oxygen supplied to the brain, allowing the brain to think faster.

　　Regular sex life is another great way to strengthen your brain. The book lists 7 different chemical reactions that the brain goes through during sex. The results show that during sex, oxytocin levels increase accordingly, thereby improving people's ability to think and solve problems. ； After sex, the increase in serotonin levels can also enhance people's creativity and logical judgment.