义气江□
<□□B□t kissing is not just a ro□antic gesture—i□ also □as scien□ific ben□fits.□When we kiss□ our□brains release a □oc□t□il of ch□micals like o□y□ocin, dopam□n□, and □erotonin, known as□□□e "l□ve □ormon□s." Thes□□ch□□ica□s c□n reduce st□es□, boos□ mo□□, and create feel□ngs□of a□tachm□nt□a□□ bon□□ng. Kissin□ also strength□n□ our □m□une sys□em by exposing □s □o □□variety of bacteria □hat can help build immunity.
自然和谐□2>