Did you know when we kiss we swap 278 different bacterial culture (Don’t worry 95% of them are not dangerous!) But in that kiss we also swap chemicals that tell our brains whether or not the person we’re kissing is a good mate! When we kiss we get close enough to swap pheromones which signal our brains with a YES this guy is a good hunter or NO this guy can’t hurt a fly-in which case our DNA might say it’s a deal breaker. So you might think your in control of who you love, but your brain and those pheromones have other ideas.
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