But why dopeople yawn? It's clear that it's because we aretired, but why does being tired makes usstrong? How does yawning help us? The truthis that we don't know the answers to thesequestions. Scientists have different ideas aboutwhy we yawn, but no one knows them forsure.The ...
A common superstition says that a person must cover his or her mouth when yawning so that the soul does not escape through the mouth. __5__ Today most people do not believe these superstitions and know that a yawn is a physical reflex. A. Did you yawn while reading this article? B...
does not make you yawn less.Also,breathing more carbon dioxide does not make you yawn more.Another idea is that yawning stretches6the lungs7and other parts of your body.It can be a way to stretch muscles and joints8,increase heart rate,and feel more awake.Other people believe that yawning...
Yawningis something we all do – maybe because we’reboredcarrying out tedious tasks or because we’retired. Sometimes, just seeing other people yawn canset you off. But is thisbiological functionreallycontagious, and why do we do it in the first place? Many of us think we open our mouths...
视频地址: 【2023.3.15】六分钟英语 我们为何会跟着别人打哈欠 Why does seeing someone yawn make us yawn Simon英语 粉丝:4.4万文章:183 关注Introduction Have you ever wondered why seeing someone yawn also makes you yawn? According to researchers, it makes a difference if you think of yourself as ...
Everybody yawns(打哈欠).But why do people yawn? It's clear that it's because we are tired,but why does being tired make us strong? How does yawning help us? The truth is that we don't know the answers to these questions. Scientists have different thoughts about why we yawn, but no...
But why do people yawn? It’s clear that it’s because we are tired, but why does being tired makes us strong? How does yawning help us? The truth is that we don’t know the answers to these questions. Scientists have different ideas about why we yawn, but no one knows them for...
If it does, next time you yawn in company, don’t feel too embarrassed. You’re just showing off yourpeople skills. 词汇表 contagious 会传染的 motor 肌肉运动的,运动神经的 cortex (尤指大脑或其他器官的)皮层 involuntary 不由自主的 physiolog...
In some countries, people think yawning is not nice. People put their hands over their mouths to cover a yawn. In other countries, people think yawning is healthy. They think that opening the mouth very big can let good things in. When they breathe out, they think that bad things go ou...
Why do people sneeze? In this lesson you will learn about this common (and sometimes comical) event, what triggers it, and even some interesting...