卷九:□槃重生
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□ut□kissing i□ n□t □us□ □ romantic gestu□e—it a□s□ has scientific benefits. □h□n □e k□ss, our brains□releas□ a cocktai□ of chemicals li□e o□□tocin, dopamin□, a□□ □erot□□in,□know□□a□ the □love h□rmo□□s." □he□e chem□cals can□□educe□str□ss□ b□ost moo□, and□create feelin□s of att□chm□nt and bo□ding. Kissing □lso str□ngthens□our□imm□ne sys□e□□by exposin□ us to a variet□ of □acteria th□t c□n he□p□b□ild immunity.