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許多人在戀愛初期,會感覺彼此「怎麼都看不夠」,每天心跳加速、充滿激情。但隨著時間推移,這種強烈的悸動往往會逐漸減弱,進入平淡階段。那麼,為什麼熱戀期總是短暫?科學研究給出了解釋。

1. 大腦的「化學作用」有時效性

在熱戀時,人體會分泌多種與快樂、興奮有關的化學物質:

多巴胺(Dopamine:帶來強烈的愉悅與獎賞感,讓人沉迷於愛情。

去甲腎上腺素(Norepinephrine:使人心跳加快、手心冒汗,出現「心動的感覺」。

血清素(Serotonin)變化:讓人對伴侶「魂牽夢縈」,時常想起對方。

這些激素在熱戀初期分泌旺盛,但科學研究顯示,通常維持 6 個月到 2 ,之後會逐漸下降。這就是為什麼熱戀激情難以長久。

香港老中医 

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