This accords with anecdotal evidence that people often yawn in situations where they are neither tired nor bored, but are preparing for impending mental and physical activity.

这与坊间流传的证据相符，即人们常会在既不累也不无聊的情况下打哈欠，只是为即将到来的精神和身体活动做准备。

youdao

Monitor science and promote research on diet and physical activity.

监测关于饮食和身体活动的科学并促进其研究。

youdao

Sports and physical activity might be the reason for some of these group situations.

有些聚会可能是因为体育或运动。

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

By this we mean poor diet and physical activity and obesity, but history offers a depressing picture.

在这个问题中我们是指不良饮食,缺乏运动和肥胖,但历史情况不容乐观

耶鲁公开课 - 关于食物的心理学、生物学和政治学课程节选

However, their biological relatives in Mexico would presumably have that same risk, but it would never be manifested if they're not exposed to what some have called a toxic food and physical activity environment.

而且,他们远在墨西哥的血缘亲属,可能也面临同样风险,但他们面临着所谓的有毒食物和活动环境,这个说法就不会得到证实

耶鲁公开课 - 关于食物的心理学、生物学和政治学课程节选

There's never been study that showed exercise and physical activity is bad for you.

NPR: Confronting Misconceptions About Cancer Prevention

The effect held good when other possible factors, such as alcohol consumption and physical activity, were taken into consideration.

BBC: 'Little and often' cuts cholesterol

And physical activity, such as going for a walk or even fidgeting and doodling, can keep people engaged, researchers say.

WSJ: Interesting Fact: There's a Yawning Need for Boring Professors