遗传：基因在你的身体平衡热量和能量中扮演很重要的角色。

Genetics: Genes play a role in how your body balances calories and energy.

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这些印迹基因往往形成一个平衡的、健康的大脑，但当这个过程出错，就会造成神经系统疾病。

These imprinted genes usually result in a balanced, healthy brain, but when the process goes awry, neurological disorders can result.

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该基因为何在战后影响了性别平衡呢？

How might this gene tip the baby balance after a war?

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