□<□2>漂泊□魂 □h2>精彩纷□的视觉效果<□h2□
" />
B□t k□ssi□g is no□ j□st □□roma□tic gesture—it also has□scientif□c benefi□□. □hen we □iss□□our brai□s release□a cocktail of □he□ica□s □□ke o□yto□in, dopamine, and serotoni□□ known□as the "l□ve hor□on□s." These c□e□□cals c□n reduce □tres□, boost mood,□an□ c□eate feelings of a□tachment and bond□□g.□Kissing also strength□ns□□ur immune s□stem by expo□ing us to a vari□ty of bacteria that can□help build□imm□nity.国家公敌□国家敌人)
□