精彩的□情发展与高潮迭起□2>
But□kiss□□g is not □us□ a roman□ic gesture□i□ also has s□ientifi□□□enefits.□When we kis□, our brains□rele□se□□ cocktail o□ □hemicals □ike oxyt□c□n, d□p□mi□e, and s□rotonin, kn□w□ as th□ "l□ve h□rmones." □he□e chemicals c□n re□□ce st□ess, □o□st mood, and create feelin□s o□ at□□□hment and □onding. □issing□□lso stre□gthens our i□mune system by□exposing □s □o a variet□ of bacteria t□a□□can h□lp build □□munity.
精彩的□情发展与高潮迭起□2>