Kissing not only feels good, it’s good for you. It relieves stress and releases epinephrine into your blood, making it pump faster, which may result in a reduction of LDL cholesterol. Kissing may even be a novel way to receive certain hormones, like testosterone:
“'Mucous membranes inside the mouth are permeable to hormones such as testosterone. Through open-mouth kissing, men introduced testosterone into a woman’s mouth,' which 'is absorbed through the mucous membranes… and increases arousal and the likelihood that she will engage in reproductive behavior.”1
Interestingly, Andréa Demirjian, author of Kissing: Everything You Ever Wanted to Know about One of Life's Sweetest Pleasures, believes “a kiss a day really can keep the doctor away.” And she recently shared eight reasons why with CNN