□p>But kissin□ □s □□t just a rom□ntic□gestu□e—□t al□o has scientifi□ be□efi□s. □h□n we□kiss, our bra□ns□□elease a □ocktail of chemicals like □xytocin, dopamine, and serotoni□, kn□w□ as the □love □ormones." These ch□micals □an reduc□ st□□ss,□boost mood, a□d c□eate □eel□□gs of at□achment □□d bo□ding. □issing also□st□engthens our immune system by expo□ing u□ □o a variety of□bacter□a□that c□n hel□ b□ild i□□un□ty.