<□>B□□ k□ssing is not□jus□ □ rom□ntic □est□re—it also has sci□ntif□□ benefi□s.□When we □is□, our brains re□ease a co□□tail of□chemi□als like oxy□ocin, dopa□ine□ and serotonin□ known as □he □love□hor□on□s." □hese chemica□□ ca□ reduc□ stress, boost □ood, and create feelings of at□a□□ment □nd bonding. K□□sing □ls□ stren□t□ens □ur immu□e system by exposing us□to a □ariety of bacte□ia that c□□ help build immuni□□.