Kissing is not only a way to express love, but also can relieve stress and prolong life! Experts say that a simple kiss can keep you young and lose excess fat around your waist. When you feel stressed, you can also kiss your troubles goodbye. Medical research has found that kissing can stimulate the production of hormones to break the tension. At the same time, kissing can help people take a deep breath and bring more spirit and abundant oxygen to your body. ★ Lose weight Every passionate kiss consumes at least 12 kilocalories in the human body. However, in order to lose weight, we don't need to kiss crazily. Scientists have announced that kissing three times a day for 20 seconds can help you lose weight. Endorphins for pain relief are a good anesthetic. The more passionate you kiss, the more endorphins your body secretes. The hormones produced by kissing have the same analgesic effect as painkillers. In addition, some other interesting effects of kissing are also related to antibiotics. In the process of kissing, saliva will automatically produce antibiotics. This can also produce an anesthetic effect. Let you forget the pain and keep kissing, kissing, kissing! ★ Tooth protection kissing can replace any brand of chewing gum, because it can prevent dental plaque and dental caries, similar to toothpaste. This phenomenon can be explained by the following theory. Kissing can stimulate the secretion of a lot of saliva, which contains a lot of calcium and phosphorus, so it can effectively prevent dental caries. Passionate kissers are less likely to get gingivitis. Moreover, in the process of kissing, the pH of saliva is neutral, so it can prevent a variety of dental diseases. ★ Beauty A passionate kiss will make more than 30 muscles in the face nervous. This can make the skin smoother and accelerate blood circulation. Maybe kissing is better than using various skin creams and masks. Of course, kissing is much more comfortable than using skin cream and making a mask. Also: stay young and beautiful: the deeper you kiss, the younger you look. A light kiss usually takes only 2 to 12 muscles to make you pout, but a deep kiss can make all 34 muscles on your face do gymnastics and keep you young and beautiful. Can reduce sick leave: German research found that if you kiss your spouse every morning, you can reduce the chance of taking sick leave, live about five years longer and reduce the chance of accidents. Burnable calories: According to a recent research report on sex by Jinxi Institute 199 1, a good kiss can burn 6.4 calories per minute, which is more than half of the calories you burn when you step on a fitness bike. Good for the heart: Kissing is good for the heart. Studies have shown that deep kissing can increase the pulse rate from 78 to 108. Strengthen parent-child relationship: When your children feel uncomfortable, kissing them can remove the pain, because kissing can strengthen parent-child relationship and help relieve discomfort. This method is sometimes more effective than taking medicine. Everyone wants to be loved, which can build self-esteem. Improve marriage relationship: Because of oxytocin, a feel-good hormone, kissing can enhance a person's happiness. Kissing can secrete oxytocin into the blood and make you feel comfortable all over. At the same time, when two people kiss, a special chemical substance will be produced between the mouth and lips, which can improve the marriage relationship.