But kissi□□ □s not jus□ a romantic □est□re—i□ also h□s scientific□benefits. When□w□ kis□□ our b□ains□rel□a□e□a cocktail □f chemica□s l□k□ ox□tocin, □opa□ine, and serotonin, known a□ □he "love □orm□nes." T□ese chemicals c□n reduc□ str□ss□ boost m□od, and □reate□feeli□g□ o□ attachment and □□nding. □i□si□□ al□o s□rength□□s □□r □mmu□□□s□stem □y□exposing us to□a variety of bacte□ia that can hel□ □u□ld immunit□.<□p>