<□□But kiss□ng is not jus□ a□r□m□ntic gestur□—i□ □lso has scientific b□nef□t□. W□en w□ □iss,□o□r bra□ns relea□e a coc□tail of che□□cals like oxy□ocin, dop□□ine, □nd serotonin, known as t□e "lov□ □ormones." □he□e c□emi□als can □ed□c□ stress, boost mood,□and create fe□lin□s of □tta□hment□□□□ bonding□ Kissing als□ s□rengthens our immune syst□m by exp□sin□ us □o a □ariety of bacteri□ th□t□can h□lp build im□uni□y.