<□□B□t ki□sing□is not just a romantic □esture□□□ also has s□ientif□c b□nefi□s. When w□□kiss, our brains □e□ea□e □ co□□tail of che□□cals□lik□ oxy□□cin, dopamine, and se□otonin,□kn□wn as the□"love h□r□one□." T□ese c□emicals can r□□uce stress, boost m□od□ □□d create f□elings of a□tachm□n□ and b□nd□ng. Kissing also streng□□ens our□immune system by exposing □s t□ a variety of bacteria tha□ can □elp □□ild i□munity□□>