But kissi□g is not ju□t □ □oman□ic gesture—it also ha□ sc□□ntifi□ ben□fit□. W□en we ki□s, ou□ brai□s□release a□cocktail of chem□cals l□ke oxytocin□ dopam□ne□ an□ serotonin, kn□wn as th□ "love hormon□s□" Thes□ □hemicals can r□duce stress, bo□st□m□□d, an□ create □eelings of at□ac□ment a□□ bo□ding. Kissing also □tre□g□h□ns our immune □ys□em by ex□□sing us to a□var□ety of bacteria that can help□□uil□ immun□ty.