According to a recent study, kissing can promote human blood circulation, and also has many medical functions such as preventing and treating stomach diseases, gallbladder diseases and dental diseases. The personnel of the world-famous American Institute of Metallography believe that sexual intercourse can quickly become a routine, but kissing can often make people excited.

The doctor confirmed that kissing can eliminate stress response. This kind of response hormone is harmful to human health, which can cause many diseases such as hypertension, muscle atrophy, elevated cholesterol, insulin disorder, brain cell damage and so on. Because the neutron medium in the brain grows rapidly when kissing, it helps to eliminate stress reaction. Dentists believe that kissing stimulates the production of saliva, and calcium and trace element phosphorus contained in saliva are absorbed by enamel, which can prevent the growth of dental caries. Kissing can also relieve pain and heal wounds.

Sexual behavior researchers say that kissing can increase the heartbeat of both men and women to 1 10, thus promoting blood circulation. It can also make people breathe faster, increase vital capacity and improve oxygen supply. Kissing can strengthen skin muscle activity, accelerate the process of congestion, reduce skin wrinkles and slow down facial aging.

When kissing, the secretion of sex hormones on both sides is accelerated, and the neuropeptide released in the body makes all organs of the body in a happy state, so it is also a kind of fitness exercise.

Of course, kissing can also spread bacteria, which is its shortcoming and has to be highly valued. Kissing patients with infectious diseases should be cautious.