The science of kissing
Kissing is part of our biology and evolution, which is why it’s so fundamental in both humans and animals. It strengthens our social bonds, makes us healthier and happier, helps us find suitable mates and encourages us to reproduce and further our species. Kissing is a lot more than just a nice feeling!
kissing stimulates the same brain regions as cocaine! Researchers have also found that serotonin levels of people who’ve just fallen in love are similar to the serotonin levels of people with obsessive-compulsive disorders. This is probably why we “obsess” so much when we find a new lover.
Your body also releases bonding hormones and decreases your stress when you kiss, which makes kissing good for your health.
Kissing releases oxytocin, the “love hormone” or “bonding hormone” that strengthens emotional attachments, especially with lovers or relatives.
Kissing also decreases our levels of cortisol, the “stress hormone” that increases your blood pressure and weakens your immune system.
interestingly, men and women may use kissing for different purposes.
Women tend to use kissing as a sort of test to determine if sex is an option or not. One survey found that seven out of eight women wouldn’t even consider sex with someone unless they had kissed them first.
Men tend to approach things differently, however. Studies have shown that men prefer kisses with more tongue. Some scientists theorize that this because it increases the chance a woman will have sex with them, as a tongue kiss transfers more testosterone to the woman.