scientists have come up with a lot of ideas about why we sleep.Some have argued that it's a way to save energy.Others have suggested that slumber provides an opportunity to clear away the brain's cellular waste.Still others have proposed that sleep simply forces animals to lie still,...
Do old people sleep a lot? Why? Sleep Do old people sleep a lot? Why?
Is It Normal for Elderly People to Sleep a Lot? As we age, we tend to getless deep sleepthan when we were younger. It is common for older adults to wake up frequently throughout the night due to aches from arthritis, an overactive bladder or even an increased sensitivity to sounds or...
Why Do Old People Sleep So Much? As people age, it becomes harder to get deep sleep. This means that older adults typically have a harder time falling asleep and staying asleep. Therefore, they tend to become sleepy during the day. But there are other specific reasons that may explain wh...
Why do some animals sleep a lot in winter? A. 来每生西来每生西Because they are lazy.来每生西来每生西 B. 除京东段些斯后种全族究通处运支军除京东段些斯后种全族究通处运支军Because there is not much food.除京东段些斯后种全族究通处运支军除京东段些斯后种全族究通处运支军 C. 的名...
Russell Foster is a circadian neuroscientist: He studies the sleep cycles of the brain. And he asks: What do we know about sleep? Not a lot, it turns out, for something we do with one-third of our lives. In this talk, Foster shares three popular theories
So the quality of sleep that you get as a night shift worker is usually very poor, again in that sort of five-hour region. And then, of course, tens of millions of people suffer from jet lag. So who here has jet lag? Well, my goodness gracious. ...
Do you know why you sleep? You may think it’s because you’re tired. Or perhaps you’ve been told sleep is good for you. Yet no one knows exactly why or how people sleep. Until the early 1950s, most scientists thought the body and brain rested during sleep. Then a scientist ...
And what makes us fall asleep ? An ancient Greek thinker believed that eating made people sleep.That idea is not as strange as it sounds. Most people are ready for a nap after enjoying a big meal . 介绍 蜷缩在柔软的床单之间,慢慢地进入酣睡,感觉很棒...
A. They eat too much for lunch. B. They sleep too little at night. C. Their body temperature becomes lower. D. The weather becomes a lot warmer. E. 【思路点拨】选C。本题是在转折处命题,考查对事实细节的辨认。文章开篇以设问的形式提出本文所要探讨的话题:人为何午后容易犯困,紧接着作者给出...