Calories burn in kissing
Passionate kissing burns 6.4 calories a minute. A Hershey's kiss contains 26 calories, which takes five minutes of walking-or about four minutes of kissing-to burn off.
More Kiss Facts
According to U.S. statistics, an American woman would kiss an average of 80 men before she gets married.
As a rule, 66 percent of people keep their eyes closed while kissing. The rest take pleasure in watching the emotions run the gamut on the faces of their partners.
Lovers swap saliva containing various substances e.g. fats, mineral salts, proteins while kissing. According to latest studies, the exchange of the above substances can give a boost to the production of antibodies which are made specifically to deal with the antigens associated with different diseases as they are encountered.