Because sleep debt accumulates in additive fashion, by day five your brain would tend toward sleep as strongly as if you'd stayed up all night.

由于睡眠债是以累积的方式攒下的，到了第五天，你的大脑会非常想睡觉，就好像你整夜未眠似的。

youdao

The researchers found patients benefited the most by day five of treatment, and that this response was sustained through the remainder of the four-week period.

研究人员发现患者在治疗5天受益最大，并且这种反应持续整个余下的4周。

youdao

I began by jogging in the park and worked up to running five miles a day.

我开始在公园里慢跑，后来逐渐增加到一天跑五英里。

《牛津词典》

So he says if he makes five sales a day he can get by. Tassembedo passes by one lady, Salimata Ouedrago, wearing the Women's Day cloth from last year.

VOA: standard.2010.03.08

For example, start your day by taking five minutes to think about winning.

FORBES: Winning: Your Best Time Management Tool

It also effectively helped Nicky Hayden, who got taken out by his team-mate Pedrosa that day, win the title by five points from Rossi.

BBC: Valentino Rossi

Double that effort by exercising for an hour a day for five days and the risk for stroke drops by almost another 25 percent.

CNN: Study: Exercise cuts stroke risk by almost half