<□>But □issi□g is□□ot □ust a romantic□gest□re—it □□so has □c□entifi□ benefits. When we □iss, our □rai□s release a□cocktail □f ch□mical□□l□k□ □xytoc□n□ dopamine, □n□□se□oto□in, known □s the "lo□□ h□□m□□□s." □hese chemicals can reduce□□tress, boost□moo□□ an□ create □eelings of□attachm□nt and bonding. K□ss□n□□al□o strength□n□ our immu□e□syste□ by e□posing us to a variety of bacteria th□□ c□n hel□ bu□ld immunity.
□h2>反思与启示□□h2>□