Many districts had indeed created guidelines for nutrition education, physical activity and school food, as required, but the rules tended to be fairly broad.

许多学区的确按照要求制定了有关营养教育、体育活动以及学校饮食方面的规定，但这些规定都过于宽泛。

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Our genetic inheritance, our quality of life in utero, education, class, career, lifestyle, status, levels of physical, mental and social activity are just some of the main influences.

影响衰老的主要因素有：遗传基因，胚胎发育，教育，阶级属性，事业，生活方式，身份地位，物理和精神状况，社会活动等。

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The physical-activity guidelines were also varied; only 62% of schools made physical education obligatory.

体育活动的规定也是各色各样的都有。只有62%的学校把体育课列为必修课。

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The researchers also gathered information about people's education, financial earnings, physical activity and use of alcohol or cigarettes.

VOA: special.2009.04.15

The researchers found that sitting was associated with a higher death risk after controlling for factors including age, gender, smoking status, physical activity, education, body mass index, as well as living in an urban or city environment.

FORBES: Why Sitting Increases Your Risk of Dying Sooner

These range from the number of calories burned in sexual activity to the value of physical education classes to the notion that burning 3, 500 extra calories leads mathematically to a one-pound weight loss.

FORBES: Obesity: American Medicine's Epic Fail

To provide children with a healthier start, local elected officials commit to helping early care and education program providers incorporate best practices for nutrition, physical activity and screen time into their programs.

WHITEHOUSE: The White House