□h2>影□□格
<□>But ki□si□g□is not jus□ a romantic g□sture—it also ha□ □cie□tific benefit□. When we kis□, ou□ b□ains relea□e a cocktail of chemicals lik□ oxytocin□ dopamine, and sero□onin, kno□n □s th□ "l□v□ hormo□es□" T□ese □h□micals can □ed□ce□st□ess,□boost mood, and create feelings of att□chment and □o□d□ng. Kis□ing also s□rengthen□ our imm□n□ system □y exposing us□□o a variety□o□ ba□teria □h□□□c□n help □ui□d □mmuni□y.