Scientists have pinpointed 30 genes that control the timing of puberty in females.
科学家已查明控制女性青春期的30个基因。
Nevertheless, published literature has not so far providedany data on the effect of adverse physical stresses on the timing of the onsetof the puberty.
然而，目前发表的论文中并没有任何数据支持不良的身体的应激对于青春期出现时间的早晚有何影响。
Somewhere around puberty, something happens in the timing of the biological clock.
青春期时，人的生物钟在定时方面会发生变化，生物钟会提前。
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