A kiss, Not Just Lip Lip Found

These two lovebirds who are happy Prince William and Kate Middleton make the first kiss on the balcony of the Palace Buckhingham after the wedding ceremony in Westminster Abbey. In front of audiences and two billion television viewers, they not only kissed once, but twice.

Indeed induce a feeling of passionate kissing and intimate. But did you know that kissing does not simply lip meets with lip. Kissing also involves a variety of facial muscles, hormones and other body movements.

Researchers from Lafayette College, Pennsylvania said, kissing will increase certain hormones in the brain. Release of hormones is the result of a combination of feelings of love, passion, and feeling relaxed. Holding hands, eye contact and hugging while kissing is also known to reduce levels of stress hormone, cortisol.

The key there is kissing on the lips. But when you do kiss a warm and deep, there were 34 who come to move facial muscles. Meanwhile, a simple kiss that we do only use two facial muscles alone.

Kissing also involves saliva. But according to study men were more "wet" than women. "There is evidence that in male saliva contains testosterone which will increase the sex drive. Therefore when kissing, men tend to produce more saliva, one of its functions to transfer testosterone to enhance sexual desire of women," says Helen Fisher, anthropologist at Rutgers University .

Beyond these scientific matters, the perfect kiss should also have a rhythm, slowly but long, light and soft, then faster, heats and excites.

A survey also said 66 percent of women and 59 percent of men said the quality that first kiss will affect the continuity of relationships. In other words, the way you kiss can make more sticky with your lover, or vice versa, thrown away.