Butkissingisnotjust□ro□anticgesture—italsoha□□□ientificbenefi□s.Whenw□k□□s□□urb□□□n□relea□e□cocktailofchemical□likeoxytocin,d□p□mine,andsero□onin,k□□wnasthe"lovehormone□."Thes□chem□calsc□nreducest□ess,bo□s□mood,a□□cre□t□□□elingso□attachm□ntandbon□ing.Kissingalsostrengthenso□rimmunesystemby□x□□□ingus□o□varietyofbacter□athat□an□elpbuildimmunity. B□tki□□i□gisno□ju□taroma□ti□gesture—italsohasscientificb□n□fits.Whenwe□iss,ourbr□□nsrele□□eaco□□t□ilofchemi□a□sli□eox□tocin,do□amine,an□serotonin□knownast□e"lovehormones."□heseche□icalscanr□duc□stress,boo□tm□od□andcr□atefeelingsofat□ac□mentand□on□ing.Kissin□a□sostr□ngthensourim□u□esystembyexp□si□gust□a□arietyo□bacteriathatcanhel□b□ildimmuni□y□ Butk□ssin□isn□tjustaroma□tic□esture□i□□lsohasscie□t□ficbe□efi□s.Wh□nwekiss,ourbr□in□releaseacockt□ilofch□micalslikeoxytocin,dopamin□□andserotonin,knownasth□"lovehormo□es."Thesec□emicalsc□nreducestress,boostm□o□,a□□cr□atefeelin□sofatta□hmenta□dbond□n□.Kiss□□ga□sostrengthensou□i□munes□stemby□xposingu□toava□ietyof□act□riath□t□□□helpbui□dimmun□ty.