Women and physical activity

The Harvard researchers looked at the level of optimism of the women, as well as other factors such as race, diet, physical activity level and overall health.

哈佛大学研究人员查看了这些女性的乐观程度，以及种族、饮食、身体活动水平以及整体健康状况等因素。

The researchers analyzed the diets and physical activity levels of the women, but failed to find any differences that could explain why women who slept less weighed more.

研究人员同时分析了她们的饮食习惯和体育锻炼，但是没有发现任何不同可以解释为什么睡得少，体重增加多。

The benefits of even low levels of physical activity were seen in all age groups, in both men and women, and in people with cardiovascular disease risks.

无论男女老幼，即使是患有心脑血管病的人，开展少量的运动也可以看到带来的好处。