: Because the brain is so highly attuned to this information, a "bad" first kiss can actually stop a promising relationship in its tracks by signaling biological incompatibility. 2. The Brain’s "Chemical Cocktail"
Kissing acts as a "biological litmus test" for choosing a partner. When we lock lips, our brains process a flood of sensory data:
: Saliva contains hormones like testosterone, which can increase arousal and signal sexual readiness.
: Because the brain is so highly attuned to this information, a "bad" first kiss can actually stop a promising relationship in its tracks by signaling biological incompatibility. 2. The Brain’s "Chemical Cocktail"
Kissing acts as a "biological litmus test" for choosing a partner. When we lock lips, our brains process a flood of sensory data:
: Saliva contains hormones like testosterone, which can increase arousal and signal sexual readiness.
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