Contents
The human body is 70 percent water. The human body dehydrates quickly, therefore it can survive only a few days without water.
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1/ 10 The body needs water
Every reaction in the body requires a water molecule. Water enables breathing by constantly moistening the lungs. Inside the cells, the water molecule is involved in important oxidation and reduction processes that enable the production of energy.
2/ 10 Water cleans
Water cleanses the body of toxins, the main organ that regulates the water balance and removes toxins from the body is the kidneys. In 24 hours, the body loses more than 2 liters of water.
3/ 10 The brain uses a lot of water
The brain is 80 percent water, so dehydration in the entire body can cause severe damage to the brain. Relatively much water, about 70 percent is consumed by the muscles, liver and lungs.
4/ 10 Blood is water
Blood plasma consists mainly of water (over 90 percent). Water maintains proper blood pressure and volume. It also acts as a transporter of nutrients and hormones. Additionally, it moisturizes internal organs.
5/ 10 The skin needs water
The skin excretes about half a liter of water a day in the form of sweat. Sweat plays an important role in the body: it removes excess heat when overheated. One of the first signs of dehydration is that the skin is pale and dry.
6/ 10 Recommended dose
The World Health Organization (WHO) recommends drinking about 3 liters of water a day. The minimum amount of water that protects the body against dehydration is 1 liter per day.
7/ 10 Water in excess
We should drink more water (over 4 liters) during hot weather, frost, physical exertion, after drinking large doses of alcohol. People who are overweight and dieting should also consume more water.
8/ 10 Dangerous overheating
Overheating of the body is most often caused by staying in the sun for too long. It can be dangerous as it threatens the brain tissue. The symptoms of overheating are mainly nausea, headaches and dizziness. It is best then to consume chilled and lightly salted drinks.
9/ 10 Dehydration
Dehydration is a consequence of the loss of water from the tissues. The most common symptoms are dry and cracked mucosa, weakness, dry and pale skin, and muscle spasms. A collapsed fontanel is observed in infants. Children under 3 years of age, the elderly and the chronically ill are particularly quickly dehydrated.
10/ 10 Heat stroke
A characteristic symptom after heat stroke is fever, nausea and vomiting, headache and dizziness, even loss of consciousness. Heat stroke is a life-threatening condition. First aid in such cases is to cool the body down in a cool bath.