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。

youdao

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。

youdao

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。

youdao

He compared obesity rates and physical activity levels of women who had been in high school before and after Title Nine took effect.

VOA: special.2010.03.04

"Once a woman became overweight or obese, there was no relation between physical activity and weight change among these women."

VOA: standard.2010.03.30

Latest figures suggest six in 10 men and seven in 10 women are not doing the recommended levels of physical activity.

BBC: Cycle and walking 'must be norm' for short journeys

But I think it needs to be more of a conscious thought that both physical activity and sleep are important factors for young to middle-aged women.

CNN: Exercise plus sleep may lower cancer risk in women

Dr Miller found that physical activity accounted for about half of the difference in immunity between depressed and normal women.

ECONOMIST: The power of negative thinking