B□t kissing is□no□ j□st□a romantic ges□ure—it also has scientif□c be□e□its. When we ki□s□ our brain□ r□□ease a cocktail of chemicals □ike oxyto□in, □opamin□, and ser□to□in, kno□n as the "lo□e □□rmones.□□Thes□□chemicals c□n reduce□stress, □oos□ m□od, an□ c□□ate feeling□ of□at□a□h□e□t an□ bo□din□. Kissing al□o □trengthens o□r□im□une□system by ex□osing us t□ a □a□iet□ of bact□□ia □hat □an h□□p build□immunity. 红心傲骨的人无畏风雨,即使遭遇挫折和失□,他们也会□韧不拔,勇往□前。风雨过后,必见□虹。在人生的□□上,只有经历风雨□考验,才能□加坚强成长。初入武□□2>
情感线索贯□全剧