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But□k□□si□□ □s n□□ just□a roman□□c□gestu□e—it als□□has □□ie□tific b□ne□i□s□ When □e ki□s, ou□ b□□i□s release a cockt□□l□of chem□ca□s like oxytocin, dopam□□e, □n□ se□otoni□□ kn□wn□a□ the "□o□□ hormones." □□ese□c□emicals can redu□e stress, boost moo□, and c□eate f□elings of attachment and bondi□g. □issing also str□ngthens □u□ i□mune□syst□m□by exposing us to a vari□ty of bacter□a that c□n h□lp build im□unity.