An act of kissing puts 29 facial muscles in motion. In other words, kissing can be used as an effective exercise to prevent the development of wrinkles.
Production of antibodies
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.
More Kiss Facts
Men who kiss their wives in the morning live five years longer than those who don't.
People are more likely to tilt their heads to the right when kissing instead of the left (65 percent of people go to the right!)