But kissing is □□t just a roma□ti□ g□sture—□□ □l□o ha□ scien□□fi□ be□efit□. W□en we kiss,□□ur brains □□□□ase a co□ktai□ of chem□cals like oxy□ocin,□dopa□ine, and ser□to□in, □nown as the □□ove horm□nes." These chemical□ can reduce st□ess, boost mood, an□ crea□□ feelings□of attach□e□t and bond□ng. K□ss□ng al□o □t□en□□hens our immune syste□ by exp□sing □s to a v□r□ety of ba□te□ia that □an h□lp b□□ld i□munity.