Sleep need is partly genetic and may be determined by other factors that also influence life span, he says.

睡眠的需求一部分取决于基因，也可能取决于其他一些因素，这些因素还影响生命的长短。

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Sleep need is partly genetic and may be determined by other factors that also influence life span, he says.

睡眠的需求一部分取决于基因，也可能取决于其他一些因素，这些因素还影响生命的长短。

youdao