Water is not only a major component of the body, but also has many physiological functions

The solubility of water is very strong, many substances can be dissolved in water, and dissociated into an ionic state, play an important role. Insoluble egg and fat can be suspended in water to form a colloid or emulsion, to facilitate digestion, absorption and utilization; water in the human body to participate directly in the redox reaction, to promote a variety of physiological activities and biochemical reactions; no water can not maintain blood circulation, respiration, digestion, absorption, secretion, diarrhea and other physiological activities.


Metabolism in the body can not be carried out; the specific heat of water, can regulate body temperature, to maintain a constant. When the external temperature is high or the body heat production, water evaporation and sweating can help dissipate heat. When the weather is cold, due to the water reserve heat potential is very large, the human body does not cause the outside world cold and make the body temperature lower, the mobility of water. On the one hand, it can transport oxygen, nutrients, hormones, etc., on the one hand, but also through the stool, urine, sweating metabolites and toxic substances excreted. Water is also the body's own lubricant, such as skin moisturizing and tears, saliva, joint capsules and plasma membrane cavity fluid are the corresponding organ lubricant Adult body fluids are composed of water, electrolytes, low molecular organic compounds and proteins, etc., are widely distributed in the tissue cells inside and outside the body, constituting the internal environment. The intracellular fluid accounts for about 40% of body weight, and the extracellular fluid accounts for 20% (of which 5% is plasma and 15% is interstitial fluid). Water is essential to the body's material metabolism, the cells must be from the interstitial fluid intake of nutrients, and nutrients dissolved in water in order to be fully absorbed, the intermediate products of material metabolism and the general end-products must also be transported through the interstitial fluid and excluded!
Water is the source of life. People's health can not live without safe, clean drinking water. But in our daily lives, there are many drinking water misunderstandings, these misunderstandings for human health buried hidden dangers, here we come to understand what drinking water misunderstandings in our daily lives.
Drinking water misconceptions: the purer the water the better
Because the human body fluids are slightly alkaline, and pure water is weakly acidic, if the long-term intake of drinking water is slightly acidic water, the body environment will be damaged. Drinking a lot of pure water is a common drinking water misunderstanding in daily life, pure water will take away the useful trace elements in the body, thus reducing the body's immunity, prone to disease.
Drinking water misunderstanding two: drinking water only for thirst quenching
Clean, safe, healthy drinking water is the cheapest and most effective health care products. As the metabolism of all cells can not be separated from water, only let the cells also drink enough water, in order to promote metabolism, improve their resistance and immunity. In addition, drinking water in the body can be proteins, fats, carbohydrates, minerals, inorganic salts and other nutrients diluted, so that the body can be easily absorbed.
Drinking water misunderstanding three: one-sided emphasis on water minerals
Many people take mineral water as daily life drinking water. When the mineral content in the water exceeds the standard, it will jeopardize human health. For example, when the iodide content in the drinking water in 0.02-0.05 mg / liter, beneficial to the human body, greater than 0.05 mg / liter will trigger iodine poisoning.
Drinking water misunderstanding four: beverage = drinking water
Water and drinks are not functionally equivalent. As the drinks contain sugar and protein, and added a lot of flavorings and coloring, drinking is not easy to make people feel hungry. Therefore, not only can not play to the body "hydration" role, but also reduce appetite, affect digestion and absorption.