While there isn't a specific sleep gene, scientists studying the sleep habits of fruit flies have found evidence suggesting a strong genetic component.

尽管并不存在一个专门的睡眠基因，研究果蝇睡眠习惯的科学家们已经找到证据，证实存在一个强壮的遗传成分。

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"Handedness has a genetic basis, but like other complex traits - height, weight - it is complex," he said. "it's not a single gene that leads to it."There's a strong environmental component, too.

“偏手性有基因基础，但是同人的其他特征——如身高、体重——一样，十分复杂，”他说，“单独一个基因并不能导致它，环境因素在其中也有很大作用。”

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"Handedness has a genetic basis, but like other complex traits - height, weight - it is complex," he said. "it's not a single gene that leads to it." There's a strong environmental component, too.

“偏手性有基因基础，但是同人的其他特征——如身高、体重——一样，十分复杂，”他说，“单独一个基因并不能导致它，环境因素在其中也有很大作用。”

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Rosanne and two other scientists decided to block the gene for apolipoprotein B, the main component in the form of cholesterol that contributes to heart attacks.

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She says they injected intravenously two differing amounts of an RNA snippet that blocks the gene that makes apolipoprotein B, a key component in cholesterol.

NPR: Researchers Try Fighting Heart Disease Gene by Gene

Piper Jaffray analyst Gene Munster concedes this morning that there could be some short-term component issues, but he thinks the impact should be limited.

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