Kissing is almost universal --- about 90% of the worlds population kisses
Kissing is pretty good exercise --- A one-minute kiss burns about 26 calories
Kissing is a biological litmus test through which the body tries to figure out how compatible one is with their partner.
Kissing is regarded (as reported in 1886) as preliminary to, or co-existant with, sexual intercourse.
Kissing is a perversion in that the parts of the body involved do not form part of the sexual apparatus but constitute the entrance to the digestive tract.
We close our eyes when we kiss because shutting out the visual input leaves more mental resources to focus on other senses, like touch.
Kissing is a means of getting two people so close together that they can't see anything wrong with each other.
Kissing is good exercise --- a 1 minute kiss burns 26 calories
Kissing is a pleasure derived from close contact with a beloved person which is replaced in various parts of the world by the rubbing of noses, by the rubbing or patting of the arms, breasts, or stomachs, or by one man striking his own face with the hands or feet of another.
Kissing is a form of loss and partial compensation like imaginative vision which compensates for blindness, castration and loss.
Kissing is a chemical choir, involving a host of chemicals (oxytocin, dopamine, saratonin), all interacting together to make us feel a certain way.