After getting up in the morning, drinking a glass of water on an empty stomach can promote gastrointestinal motility and help eliminate toxins accumulated in the body at night. You can choose boiled water, purified water and mineral water for this glass of water in the morning to reduce the viscosity of human blood; The second is lemonade, which can increase appetite in the morning and is conducive to urination; The third is light salt water, which is very good for people with constipation.
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Drinking water is a way for organisms to absorb water through their mouths. The daily intake of liquid through the mouth is about 2 liters. Water is mainly absorbed in the stomach. After water enters the human body, it is mainly used to supplement intracellular fluid and extracellular fluid, and participate in various physiological activities of the human body. Therefore, drinking water is an important part of maintaining biological metabolism.
Harm of insufficient drinking water
When water is scarce, besides feeling thirsty, there will be dry skin, cleft lip, fatigue, less urine, dizziness, headache and other phenomena, and in severe cases, there will be mental symptoms such as fever and irritability. Insufficient water will lead to gastrointestinal digestion, blood nutrition, body fluid concentration adjustment and other functional disorders. And it can also cause back pain, deformed knee joint disease, arthritis and other diseases.
The harm of drinking too much water
Excessive drinking water will lead to excessive salt loss in the human body. At first, there will be dizziness, weakness, rapid heartbeat and other symptoms. In severe cases, there will even be convulsions, confusion and coma, that is, water poisoning. However, excessive water or water poisoning in the body is rare in normal people, and it is generally more common in people with abnormal liver, kidney and heart functions.
How to judge water shortage
If you don't know whether to drink more or less water, here is a little trick, which can be judged according to the color of urine. Generally speaking, human urine is light yellow. If the color is too light, maybe they drink too much water. If the color is too dark, it means that more water is needed.
Water is not only the main component of the body, but also has many physiological functions, mainly divided into free water and bound water.
The solubility of water is very strong, and many substances can be dissolved in water and dissociated into ionic states, which plays an important role. Protein and fat insoluble in water can be suspended in water to form colloid or emulsion, which is convenient for digestion, absorption and utilization; Water directly participates in the redox reaction in human body, promoting various physiological activities and biochemical reactions; Without water, it is impossible to maintain physiological activities such as blood circulation, breathing, digestion, absorption, secretion and diarrhea, and metabolism in the body cannot be carried out; Water has a large specific heat, which can regulate body temperature and keep it constant. When the outside temperature is high or the body generates a lot of heat, evaporation and sweating of water help to dissipate heat. When the weather is cold, because water has great potential to store heat, the human body will not be cooled by the cold outside, and water has great mobility. On the one hand, it can transport oxygen, nutrients, hormones and so on. On the other hand, it can excrete metabolites and toxic substances through defecation, urination and sweating. Water is also a self-contained lubricant in the body, such as skin moisturizing. Tears, saliva, joint capsule and serous cavity fluid are all lubricants for corresponding organs.
Adult body fluids are composed of water, electrolytes, low molecular organic compounds and protein, which are widely distributed in tissues and cells, forming the internal environment of human body. Among them, intracellular fluid accounts for about 40% of body weight, and extracellular fluid accounts for 20% (including 5% plasma and 15% interstitial fluid). Water is an essential substance for substance metabolism. Cells must absorb nutrients from tissue fluid, and nutrients can only be fully absorbed if they are dissolved in water. Intermediate products and general end products of substance metabolism must also be transported and eliminated by interstitial fluid.
Reference:/baike.baidu.com/item/%E5% 96% 9d% E6% B0% B4/3357359? Fr = Aladdin "target =" _ blank "title =" Baidu Encyclopedia-Drinking Water "> Baidu Encyclopedia-Drinking Water.