Love is in the air, especially during February, the month of romance thanks to Valentine’s Day. While the magic of a passionate kiss needs no introduction, science now reveals that kissing is more than just a symbol of affection—it’s a boon for your health, body, and mind.
The euphoria of kissing
We’ve all felt the rush that accompanies a kiss, but what’s happening beneath the surface? Our lips are packed with millions of nerve endings, making them one of the most sensitive areas of the body. When we kiss, these nerve endings send signals to the brain’s pleasure centers, sparking a cascade of "feel-good" chemicals like dopamine and serotonin.
Additionally, the "love hormone," oxytocin, is released during a kiss, deepening emotional bonds and fostering intimacy. As Albert Einstein humorously noted, “Any man that can drive safely while kissing a pretty girl is simply not giving the kiss the attention it deserves.”
Kissing also lowers cortisol levels, the hormone associated with stress. So, the next time you’re seeking relaxation or connection, a kiss might just be the answer.
French kissing: A boost for your immunity
Beyond the emotional high, kissing offers tangible benefits for your immune system. A 2014 study led by Dutch microbiologist Remco Kort at the Netherlands Organisation for Applied Scientific Research discovered that a 10-second French kiss can transfer up to 80 million bacteria.
These microbial exchanges may sound alarming, but they’re actually beneficial. Couples who kiss intimately at least nine times daily were found to share similar microbiota, or the ecosystem of microorganisms in the mouth. This sharing helps introduce diverse bacteria, such as probiotics like Lactobacillus and Bifidobacterium, which can support immune function.
Chief Scientist Officer Gianfranco Grompone of BioGaia explains, “When we interact, such as through talking or kissing, we exchange microbes. This is fundamentally good, as it strengthens our immune system’s ability to recognise beneficial and harmful bacteria.”
So, pucker up—it’s good for you in more ways than one!
Source
Remco Kort, Martien Caspers, Astrid van de Graaf, Wim van Egmond, Bart Keijser, Guus Roeselers. Shaping the oral microbiota through intimate kissing. Microbiome, 2014; 2 (1): 41 DOI: 10.1186/2049-2618-2-41
Benefits of kissing – How your love life affects your body and mind
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