In this captivating episode of “Ok. Now You Know,” host Joe Garner explores the fascinating phenomenon of kissing. Why do humans kiss, and what does it signify across different cultures? Joe guides us through the anthropological roots, biological mechanisms, and cultural variations of this intimate gesture.

Kissing is not just an act of affection; it’s a complex behavior with deep evolutionary roots. Joe explains how it may have originated from mouth-to-mouth feeding, evolving into a gesture of love and comfort. The episode dives into the chemistry of kissing, highlighting the role of dopamine, oxytocin, and cues in saliva that trigger attraction. Garner elucidates how these chemicals contribute to feelings of euphoria and bonding, likening the brain’s reaction to kissing to the effects of addictive drugs.

Cultural insights reveal a diverse landscape where kissing carries different meanings and practices. While some societies embrace romantic kissing, others view it as a private act or even find it taboo. Surprisingly, less than half of all cultures engage in romantic lip-to-lip kissing. This variability underscores the significant influence of cultural norms on this behavior. Joe Garner’s insights challenge us to reassess our perceptions of kissing, viewing it through lenses of biology, culture, and emotion.