1. No harmful substances; 2. It contains a proper amount of minerals; 3. Moderate hardness; 4. Rich in oxygen; 5. The water mass is small; 6. The 6.pH value is weakly alkaline.
Attachment: "How to drink water correctly", no need to read it.
First of all, healthy adults need about 2500 ml of water every day.
1. There are three sources of water in the human body: drinking water accounts for 50%, food contains 40% water, and the water produced by metabolism in the body is 10%.
2. Four channels for human drainage: 60% urine, 65,438+05% lung exhalation, 20% skin evaporation and perspiration, and 5% water in feces.
3. The drinking water quantity is basically equal to the discharged water quantity, which is in a dynamic balance.
4. The intake and discharge of water should be maintained at about 2500ml per day. The increase of physical activity and the change of environmental temperature will change the amount and way of water discharge, such as less urine and less sweat in winter and the opposite in summer.
Second, the role of water in the body:
Percentage of water in adults (average): 59% for men and 50% for women (hehe, men are made of water).
Water not only constitutes body components, but also has important physiological functions:
1. Water constitutes the medium in cells, and all biochemical reactions in human body depend on the existence of water.
2. The human body relies on water to transport nutrients, transfer metabolites, and excrete metabolic waste through urine.
3. Water is the main component of thermoregulation system. The heat generated by body metabolism is transferred to the skin through body fluids, and then evaporated or sweated to regulate the body temperature and keep it constant.
4. Lubricate tissues and joints.
Three, the types of drinking water:
It is best to choose boiled water boiled with tap water for drinking water, and not to drink or drink less pure water, such as drinking pure water at work and drinking boiled water at home.
Six standards of healthy drinking water proposed by the World Health Organization: 1. No harmful substances; 2. It contains a proper amount of minerals; 3. Moderate hardness; 4. Rich in oxygen; 5. The water mass is small; 6. The 6.pH value is weakly alkaline.
Pure water basically contains no minerals, with hardness close to zero, low oxygen content, large water mass and weak acidity.
Drinking green tea water can prevent cancer and radiation under the circumstance of environmental pollution and perennial use of computer and mobile phone.
Some people, especially teenagers, drink a lot of sugary drinks instead of water every day, which is an unhealthy habit and should be corrected.
Four, the main points of correct drinking water:
1. Drink boiled water or green tea water and refuse sugary drinks.
2. Take the initiative to drink water, and only drink water when you feel thirsty.
3. Drink a small amount of water many times, and don't binge drink, about 200ml each time is appropriate.
4. Reasonable distribution of drinking water, 2 cups in the morning, 3 cups in the afternoon and 1 cup in the evening.