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2010-08-13 09:07:19
Dehydration limits a person's ability to work and think. Experts say a reduction of only 4% or 5% in body water leads to a drop of 20% to 30% in work ability. The loss of salt through perspiration also reduces the amout amount of work that muscles can do.
The treatment for dehydration exhaustion is the same as for heat exhaustion. Drink plenty of water and rest in a cool place. Even betterdoctor , doctors say, drink about two 2 liters of water a day , So so problems with dehydration will not have a chance to develop.
Heat exhaustion can lead to heat stroke if it is not treated. Heat stroke is the most serious distort disorder linked to hot weather. It results when the body is not able to control its temperature. The body's temperature increases and perspiration fails.
Generally, the body temperature raises rises to more than 40 degress degrees Celsius. The , the body stops perspiring. The skin becomes dry and very hot. A person may become uncontrolsunconscious, not knowing what is happening. Doctor
Doctors say tissues and organs begin to cook when the body's temperature is higher than 42 degrees Celsius42℃. Brain Permanent brain damage and death may result. Someone suffering his heat stroke requires immediate medical attention. Doctor Doctors say , such treatment is necessary , or the person could die before helper help arrives.
| 听写于：2010-8-13 9:06 | 用时：25:12 | |
| 正确率：90% (+20分) | 错词：23个 |
