What are the benefits and disadvantages of water, and what are the benefits and disadvantages of wat

1. What are the benefits of drinking water?

Water can assist in the "burning" of body fat and can also improve the body's basal metabolism. If the body is not hydrated for a long time, it can reduce energy consumption, which contributes to the occurrence of obesity.

The cause of bad breath is caused by a lack of water in the body, so middle-aged and elderly friends should not only brush their teeth or clean their dentures frequently, but also develop a good habit of drinking more water, and keep about 1200 ml of water every day.

When a person has a cold and fever, the human body cools down by itself out of the response of self-protection function, and then there will be sweating, shortness of breath, increased evaporated water and other manifestations of accelerated metabolism, then it is necessary to replenish a large amount of water, and the body will also have thirst. Drinking plenty of water not only promotes sweating and urination, but also helps regulate body temperature and promotes the rapid excretion of bacteria and viruses in the body.

2. What are the disadvantages of drinking water?

Everyone knows that drinking water is good for health, but the amount of water should be paid attention to, especially for people with kidney problems or poor metabolic conditions (such as those who are prone to edema), the amount of water intake should be particularly cautious.

After people eat, food takes up most of the space in the stomach and intestines. Drinking a lot of water will fill the stomach and make people feel bloated. In addition, if a person eats too much and drinks a lot of water, the food in the stomach is heavy, which will also make the stomach sags or expands.

Drinking too much water after meals will dilute the concentration of gastric juice and affect the digestion and absorption of food. The human stomach secretes about liters of gastric juice every day, and the gastric juice contains about the amount of gastric acid, which is chemically composed of hydrochloric acid. Hydrochloric acid dissolves proteins, digests calcium- and iron-containing foods, and kills bacteria that enter the stomach with food.

If you drink plenty of water after meals. Diluted gastric juices.

The ability of hydrochloric acid to digest food is weakened, and the bactericidal power is weakened, so it is better not to drink water or drink less water after meals.

1. Benefits

Water is needed for various physiological activities of human beings, such as water can dissolve various nutrients, fats and proteins (protein foods) must become a colloidal state suspended in water before they can be absorbed; Water flows endlessly between blood vessels and cells, transporting oxygen and nutrients to tissue cells, and then excreting metabolic wastes from the body.

2. Disadvantages

Water will bring a lot of natural disasters, when the storm comes to nature, the storm will bring the water of the river**, forming a flood, the flood will drown the crops, bring economic losses to human beings, and will also wash down houses and take lives.

Current status of China's freshwater resources:

China's total freshwater resources are more, but according to the population, the average level of cultivated land is very low, compared with many countries in the world, China's freshwater resources problem is more serious, although China's total river runoff ranks sixth in the world, but because of China's vast territory, large population, per capita and per mu are lower than the world average.

The per capita occupancy is about 1 4 of the world's per capita occupancy, and the per mu occupancy is only 3 4 of the world's per mu per mu. According to the latest statistics of 149 countries and regions, the per capita share of Chinese has retreated to the 110th place in the world. Therefore, properly handling the relationship between water and people and people and water is more arduous and complex than any other country in the world.