Arden is now 14, and the two have discussed puberty, healthy relationships and birth control.

奥尔登现在14岁，她和妈妈讨论过青春期、健康的恋爱关系以及节育的问题。

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Puberty prompts the brain to re-wire itself, bringing on waves of changes in regions associated with impulse control, judgment, attention and anxiety.

青春期促使大脑重新连接自己，从而在大脑中与冲动控制，判断，注意力和紧张相关的区域中产生变化的脑电波。

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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。

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"These findings define a new drug target with wide potential for therapeutic intervention in conditions such as hormonal-dependent cancer, abnormal puberty and control of fertility, " said Dr Samuel Aparicio of Paradigm Therapeutics.

BBC: NEWS | Health | Gene 'decides timing of puberty'

Arden is now 14, and the two have discussed puberty, healthy relationships and birth control.

WSJ: To Skip the 'Talk' About Sex, Have an Ongoing Dialogue