9. Nachküssen is a German word that means “a kiss to make up for those that have not occurred”.
10. Kissing triggers the release of oxytocin in your body.
Often called the “love hormone”, though that’s not all it does by a long stretch, oxytocin is involved in developing feelings of attachment. It’s thought to be what keeps the love in a relationship alive long after the initial honeymoon period (and dopamine spike) is over.
11. More kissing in a relationship is related to how satisfied people say they are in that relationship.
The same study found that this wasn’t the case for having more sex. But people’s satisfaction with the amount of kissing and sex was related to the quality of their relationship.
15. When your lips touch someone else’s 5 out of 12 of your cranial nerves are engaged.
You’re brain is basically trying to gather as much information as it can about the other person.
17. Most people remember their first kiss more vividly than the first time they had sex.
John Bohannon of Butler University asked 500 people about their memories of important life experiences, including their first kiss and losing their virginity. The kiss beat everything as the most detailed memory.
Additional source: The Science of Kissing by Sheril Kirshenbaum.