Do you usually drink hot strong tea?

　　Drinking hot strong tea is good for the body. Many people like to drink hot strong tea because it has many health benefits and can refresh the mind. However, drinking strong tea will not only cause "tea drunkenness" and insomnia, but drinking it for a long time can also damage your bones.

　　According to expert analysis of tea drinking habits and fracture risk among 3,170 elderly people over 50 years old in the United States, people who drink 5 cups of strong tea a day have a 70% higher risk of hip (pelvis) fractures than those who do not drink strong tea.； Those who drink more than 7 cups of strong tea a day have a relative risk of more than 80%. This is because the content in tea coffee Because it can significantly inhibit the absorption of calcium in the digestive tract and increase the excretion of calcium in the urine. Due to the dual pathways of inhibiting absorption and accelerating excretion, calcium deficiency in the body induces calcium loss in the bones, leading to osteoporosis over time and easily leading to fractures.

　　The National Nutrition Research Institute and the Food Hygiene Research Institute measured the fluoride content of 20 domestic teas and found that the average fluoride content per kilogram of tea is 186.2 mg, which is tens to a hundred times higher than other foods.； - Among them, brick tea from Guangxi and Sichuan contains 430 to 52 l mg of fluoride per kilogram. Long-term drinking, especially when brewed into strong tea, can cause fluorosis.

　　Medical research has found that regular drinking of high-temperature (above 80°C) tea may burn the esophagus, and the tannins in the tea can be deposited at the damaged site, constantly stimulating the esophageal epithelial cells and causing them to mutate. After the mutant cells proliferate in large numbers, they can become cancerous tissue.