1, when the gas is hot, human blood vessels are in a state of expansion. If you drink a lot of ice water, it will inevitably lead to rapid contraction of blood vessels, leading to insufficient blood supply to cardiovascular and cerebrovascular diseases. Especially patients with hypertension, coronary heart disease and cerebrovascular disease will lead to hypertension, angina pectoris and even myocardial infarction and cerebrovascular disease.
Excessive drinking ice water will also affect the development and physiological function of reproductive system, especially for some girls, regardless of whether they are menstruating or not, drinking ice water or cold drinks at will cause menstrual disorder and dysmenorrhea. Cold gathers in the uterus and even hides the disaster of infertility after marriage. Excessive drinking of ice water by boys will also affect sperm development. In addition, ice water can also cause harm to the throat, vocal cords and respiratory system.
2. When you sweat a lot after work or exercise, you can add some dilute salt water. Sweat contains a lot of sodium chloride, accounting for about 5% of sweat. If the salt is not supplemented in time, it will lead to loss of appetite and severe heatstroke. Sometimes drinking more water is the root cause, so drinking salt water is also a good way to prevent heatstroke. Generally, salty boiled water, mung bean soup and herbal tea with a salt content of 2-3% are the best drinks.
The benefits of drinking ice water go far beyond the above. In summer, everyone will drink more ice water, which can also effectively help us reduce the chance of getting a sore throat. It can also help us solve the problem of dizziness and headache, and achieve a very good refreshing and comfortable effect.
Disadvantages of ice water
1, causing cough and cold.
Drinking too much ice water will not only make the body temperature drop rapidly, but also easily irritate the throat and bronchus, causing discomfort such as cough and bronchitis. Chinese medicine believes that drinking ice water is also easy to make cold evil invade the lungs, make people cough and catch a cold more easily.
2, abdominal pain and diarrhea
Drinking a lot of ice water will stimulate the gastrointestinal tract, accelerate the peristalsis of the gastrointestinal tract, and sometimes even cause gastrointestinal spasm, leading to abdominal pain. The time of food in the gastrointestinal tract is too short, and the digestion and absorption are incomplete, causing abdominal distension and diarrhea.
3, indigestion
In hot summer, eating is a kind of torture, but people still can't help eating. People often drink iced drinks during meals, or drink ice water after meals to relieve the heat of eating, but people don't know that drinking a lot of ice water into the stomach can easily cause gastric mucosal vasoconstriction, reduce the activity of many enzymes in the stomach, and cause indigestion.
4, easy to get stomach trouble
Drinking too much ice water will not only stimulate the intestine, but also stimulate the vasoconstriction of gastric mucosa, which is easy to lead to gastric ischemia and hypoxia, and it is easy to have gastritis or stomach disease recurrence. Drinking ice water often can easily affect gastrointestinal digestion.
5, causing angina pectoris
Drinking too much ice water may also stimulate the cerebral vessels, causing vasospasm of the cerebral vessels, which may easily lead to angina pectoris. Especially for middle-aged and elderly people with cardiovascular diseases, it is best not to drink ice water.
6, easy to lead to heatstroke
It's very hot in summer, especially outdoors. You can sweat profusely in just a few minutes without turning on the air conditioner. At this time, many people are used to drinking a glass of ice water, which is actually unscientific. The knowledge brought by drinking ice water on a hot day is short-lived, cool and comfortable. Drinking a lot of ice water in summer will lead to the closure of sweat gland pores, which will lead to poor perspiration, hinder the body's heat dissipation and easily lead to heatstroke.
7. Women with irregular menstruation
Drinking too much ice water can easily lead to irregular menstruation, dysmenorrhea and even infertility. Ice water will stimulate the uterus and make it contract, which will lead to unfavorable menstrual blood discharge and dysmenorrhea. And drinking ice water often will make the uterus in a cold state, affecting menstruation and pregnancy.
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