□□h2>主题和意义
<□>But kis□ing is□not □ust a romantic g□sture—it□also has scientific benefit□. When we □iss, our brains □e□e□se□□ cock□ail of□chemical□ like o□yt□cin, dopami□e, and ser□to□i□, known as the "lov□ □ormones." Thes□ □hem□cals can redu□e□stress□□boost m□o□, an□ crea□e fee□□n□s □f attac□me□t □nd bo□ding. Kiss□□g als□ s□□engthens□our i□mune □ystem□by □xp□si□□ us to a variety o□ bacteri□ that ca□ □elp buil□ immu□i□y.<□p>
爱情的□量
□24小时第九季:紧急时刻》简介□2□