Positive people may owe their optimism to a gene variant that helps them dwell on the good and ignore the bad.

乐观主义者之所以会乐观向上也许是因为拥有能帮助他们凡事都向好的方面看且不去在意负面影响的基因。

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Despite this, genetic tests for this gene variant are currently being marketed on the Internet for those who can afford them.

尽管如此，目前互联网上已经在向那些有钱人推销检测基因变异的基因测试法。

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The people with the gene variant were sleepier and more fatigued whether they were fully rested or sleep-deprived, and their sleep was more fragmented.

携带变异基因的人无论是得到充分休息还是被睡眠剥夺都是昏昏欲睡且更疲劳，睡眠时断断续续的多些。

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When present, this gene variant nearly doubled the risk of heart attacks and increased the risk of stroke by 67%.

FORBES: Attacking Heart Attacks

It points to seven studies Celera has done on 50, 000 patients that found the risk of the gene variant is real.

FORBES: Why You Shouldn't Trust Newfangled Gene Tests

He pointed to seven studies Celera has done on 50, 000 patients that found the risk of the gene variant is real.

FORBES: Gene Test For Heart Disease May Be Useless