久久国产成人精品国产成人亚洲,精品一区二区成人精品,成人乱码一区二区三区av,性欧美高清come,欧美牲交a欧美牲交aⅴ一

您現(xiàn)在的位置: > Language Tips > Easy English > Odd Question  
 





 
為什么打噴嚏時(shí)總會(huì)閉上眼睛?(通訊員稿)
[ 2006-09-29 10:34 ]

你有沒(méi)有發(fā)現(xiàn),打噴嚏的時(shí)候總會(huì)不由自主地先閉上眼睛?是擔(dān)心力氣太大眼珠飛出來(lái)嗎?還是為了防止噴出的細(xì)菌會(huì)掉到眼睛里去呢?如果你硬是睜開(kāi)眼睛打噴嚏,會(huì)出現(xiàn)什么后果?


Let's get one thing straight: "It is very unlikely our eyes will extrude or 'pop out' if we sneeze too forcefully," says Brian Smart, MD, chairman of the Asthma and Allergy Center of the DuPage Medical Group in Illinois.

Well, if the reason we close our eyes when we sneeze isn't to keep them from popping out of our heads, then why bother?

"Similar to the reflex that occurs when your knee kicks after it's hit with a medical hammer, or the way your hand pulls away from something hot when you burn it, closing your eyes when you sneeze is a powerful reflex," says Smart, who is also a spokesman for the American Academy of Allergy, Asthma and Immunology. "You can try and force yourself to keep your eyes open when you sneeze, but it's hard to do."

Another piece of folklore: We sneeze with our eyes closed to keep the stuff we sneeze out from getting in our eyes.

"It is also unlikely that the substances we sneeze will get into our eyes, since the substances we sneeze travel some distance," says Smart. "Incidentally, the fact that we sneeze a considerable distance leads me to remind people to always cover their mouths when they sneeze. This will help slow the spread of respiratory disease, and is simply good manners."

Don't forget to say gesundheit.


respiratory disease: 呼吸道疾病

gesundheit: 祝你健康!(對(duì)剛打噴嚏的人的祝愿)

(北京外國(guó)語(yǔ)大學(xué)通訊員謝麗供稿)

 
 

 

 

 
 

48小時(shí)內(nèi)最熱門(mén)

     

本頻道最新推薦

     
  International Day of Peace(國(guó)際和平日)
  September 11
  An interview
  When is a bug not a bug?
  Professor and the editor