It is not a metaphor. It is pure pharmacology. When your mouth touches mine, my hypothalamus stops producing the hormone that makes me distrust the world. Oxytocin flows in like a slow river and disarms my alarms one by one. Cortisol —that punctual executioner— lowers its guard. The tongue, which does not obey reason, deciphers the taste: it is not sweet, not salty, it is the exact flavor of your immune system negotiating with mine. It is the chemistry of two bodies learning not to destroy each other. You are my natural anxiolytic. My exact dose of serotonin. My prescription-free analgesic against the pain of being alive. But there is a problem: antidotes run out. The body develops tolerance. And then I need more kisses, more saliva, more foreign bacteria colonizing my body. Until one day the poison returns, and you no longer have the formula. And the heart, which had learned to beat without fear, must remember how to survive without an antidote. The Kiss as Antidote