在生理方面，睡眠多长时间以使你保持敏捷？
On the physical side, how much sleep should I get to be sharp?
一是，女性在生理方面的性别特点，会增加劳动成本；
One is, women in the physiological aspects of gender characteristics, will increase the cost of labor;
看来，具有数学天赋的男孩的大脑在生理方面的活动相当独特。
It seems that the brains of boys with mathematical talent operate in a way that is physically unique.
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