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飞行□巅 □力全开
边缘追击的魅力□2>
<□>But k□ssing□is not j□st a romant□c gestu□□—it als□ h□s s□□entif□c ben□fits. □□en we□kiss, our bra□ns release a cocktail□□f c□em□c□ls□l□ke □xytocin, dopamine, □nd serot□nin,□known as the "□ove hormon□s□" These chemicals □an re□u□e stress, boost m□□d, and □reat□□feelings of attachment and□bond□ng□□Kis□ing□al□o stre□g□h□n□ □ur immun□ s□ste□ b□ exp□sing us □□ a □ari□ty of bacte□ia that□ca□ help bu□ld immunity□