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春風送爽的季節

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促使萬物生機勃勃

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精力旺盛,成了交配最佳時節

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這項論點,眾所周知

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確實如此嗎?

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我認為和春風送爽有直接關係

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加拿大研究報告表示

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三月,差不多是寒假期間

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通常是青少年懷孕高峰期

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另一項研究指出

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早春時節

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男性能產生最多,最健壯的精子

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那麼,為何和季節轉換有關?

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科學家認為,男性在此時

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生理方面活力旺盛;心理方面情緒穩定

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兩者皆會影響體內賀爾蒙

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最關鍵的,就是褪黑激素

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也就是 睡眠時產生的賀爾蒙(sleep hormone)

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在晝短夜長的季節

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褪黑激素釋放更多,助於熟睡

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到了春天,夜晚漸漸縮短

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使得褪黑激素漸漸減少

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間接解釋人類更早起床也更有活力的原因

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影響情緒的化學物質,就是血清素

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俗稱:愉悅賀爾蒙

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陽光普照的春天,釋放更多

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病理學家認為

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體內賀爾蒙分泌多寡

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可能與生物的生存環境與繁殖能力有關

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寒冬時,動物不常活動

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只為了覓食才會活動

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早期人類也是如此

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到了春天,因為食物充足

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理所當然,重心轉移到

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其它欲望

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活力滿分

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但是,往赤道移動,就不是如此了

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因為氣候炎熱

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舉例來說

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科學家發現

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越接近赤道地區

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季節轉換和田鼠繁殖能力是不變的

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但是,陽光宜人的季節

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和"拋媚眼"並非成正比

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人類在攝氏22度時

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心情最愉快

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無人不知,無人不曉

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一旦氣溫上升

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一定會寬衣解帶

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以上是<科學人>的科學小錦囊影片

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我是Yasmin Tayag