英语六级阅读:中暑急救科学知识

　　夏日炎炎酷暑难当，请大家学习一下《中暑急救科学知识》教你怎样应急抗暑

上海油压工作室　　What is heatstroke?

上海油压工作室　　Heat exhaustion is a collection of symptoms brought on as the body struggles to control its temperature. Left untreated, heat exhaustion can progress to a more severe form known as heatstroke.

　　The body normally uses several mechanisms to cool itself down, including directing more blood to the skin and by sweating. Everyone sweats. Most people lose more than a litre of sweat a day. In hot weather or during exercise, when the muscles generate large amounts of heat, they sweat even more heavily - losing large amounts of water and salts. If the body loses too much liquid or salt, the symptoms of heat exhaustion develop.

上海油压工作室　　If someone with heat exhaustion continues to be exposed to high temperatures, the more serious and life-threatening condition of heatstroke may develop.

上海油压工作室　　In this situation, the body becomes dangerously dehydrated. Its cooling mechanisms malfunction and are no longer able to assist the body in losing enough heat, so the body temperature starts to rise.

　　Symptoms

　　The symptoms of heat exhaustion include:

上海油压工作室　　* Excess sweating

上海油压工作室　　* Nausea and vomiting

　　* Feeling light-headed/faint

上海油压工作室　　* Tiredness

　　* Headache

　　* Muscle cramps

上海油压工作室　　With heatstroke, the temperature of the body rises and the following symptoms may occur:

　　* Confusion

　　* Disorientation

　　* Rapid and shallow breathing

上海油压工作室　　* Fits (seizures)

　　Causes and risk factors

上海油压工作室　　Anyone can develop heat exhaustion and heatstroke, although some people are more at risk than others. These include:

　　* Small babies, children and older people, who have less efficient body cooling systems.

上海油压工作室　　* People suffering from diarrhoea, who are more likely to become dehydrated.

上海油压工作室　　* People from cooler climates who travel to hotter climates, as it may take a while for their bodies to get used to the heat. Being in areas of high humidity also increases a person’s risk, as this reduces the efficiency of sweating and decreases the amount of heat lost from the body.

　　* People with certain medical conditions that reduce the efficiency of the body’s cooling mechanisms. For example diabetes, obesity and chronic heart failure.

　　* Those who drink excessive amounts of alcohol, which dehydrates the body.

上海油压工作室【英语六级阅读:中暑急救科学知识】相关文章：

中暑人员的逃生急救知识07-28

英语六级阅读02-18

英语六级阅读-Credit02-18

英语六级中英阅读02-04

英语六级阅读指导:《常见的阅读方式》02-21

逃生急救知识之火灾急救常识07-30

触电人员的急救逃生急救知识07-27

关于冰雹的科学知识06-05

英语六级阅读满分方法02-13