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When was the first kiss? Recent papers have suggested that romantic or sexual kissing began 3,500 years ago in what is now India. But a new review paper in the journal Science says that this style of kissing is also mentioned in clay tablets from Mesopotamia that predate the Indian texts by about a thousand years.

There are different perspectives behind our reasoning for kissing. The history of kissing is also very diverse, from being an instinct from breastfeeding to having to do with chimpanzees’ habits.

Less than half of all societies kiss with their lips, according to a study of 168 cultures from around the world.

Lip-on-lip kissing is not nearly as universal as we might think it is, so can the diverse number of ways that humans kiss reveal what it is about this intimate act that we find important?

Less than half of all societies kiss with their lips, reported British Broadcasting Corporation (BBC), quoting a study of 168 cultures from around the world.

With Valentine’s Day around the corner, love is in the air for many. The sight of smooching couples may warm your heart, or turn your stomach.

Think back to your very first kiss. That big day will always be cemented in your mind, but it's likely that all the hype surrounding the event was better than the smooch itself. It's possible that you were one of the lucky ones who experienced fireworks or, maybe, you engaged in an awkward, sloppy exchange of saliva that made you question why you were even excited to accomplish this milestone. Good times, good times.

Our simple task in this Community Health Educators orientation activity was to order the cards from least to most intimate. On the completed intimacy spectrum, sex fell somewhere in the middle — less intimate than sharing a Netflix password.