structural:summarization, quality:correction, structural:reformatting
Health benefits

Kissing stimulates the production of hormones responsible for a good mood: oxytocin, which releases the feeling of love and strengthens the bond with the partner, endorphins – hormones responsible for the feeling of happiness –, and dopamine, which stimulates the pleasure center in the brain. Affection in general has stress -reducing effects. Kissing in particular has been studied in a controlled experiment and it was found that increasing the frequency of kissing in marital and cohabiting relationships results in a reduction of perceived stress, an increase in relationship satisfaction, and a lowering of cholesterol levels.