For the chocolate study, researchers identified 4,849 people in good health without risk factors for cardiovascular disease, such as high cholesterol and high blood pressure.

在这项巧克力研究中，研究人员明显发现有4849名对象的身体状况很好，没有心血管病的风险因素，比如高胆固醇或是高血压。

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And they said it may be that eating a lot of chocolate actually causes people to feel depressed, another possible explanation for the association they saw in the study.

此外还有种对二者之间联系的解释：说不定正是因为吃了那么多巧克力才让人们感到低落。

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For example, a recent study from Sweden suggested that eating chocolate reduced the risk of heart failure in women.

例如，一项来自瑞典的近期研究表明吃巧克力降低女性中心力衰竭的风险。

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The study also noted that while dark chocolate had been linked to benefits for the heart in the past, milk chocolate was the preferred option in Sweden and in the study.

BBC: Chocolate may protect the brain from stroke

The adults in the chocolate study were initially screened for separate research on cholesterol-lowering drugs.

WSJ: A Chocolate a Day to Get Slimmer?