Coffee and health who should not drink coffee? People who can't drink coffee.

The research on coffee in modern medicine has proved that the main benefit of coffee to the human body is to refresh the brain, make people excited, eliminate fatigue, and promote thinking, appetite and digestion. However, coffee is not suitable for everyone to drink, improper drinking, will cause aggravation of some diseases.

△ patients with coronary heart disease: often drinking coffee can increase the content of cholesterol in the blood. According to foreign survey data, among patients with myocardial infarction, 17% do not drink coffee, and 48% drink about 5 cups a day.

△ peptic ulcer patients: because caffeine can stimulate gastric acid secretion, and make digestive system smooth muscle vascular relaxation, accelerate food metabolism, and reduce the nutritional value of food.

△ diabetics: caffeine can reduce insulin secretion in the pancreas, reduce glucose tolerance, increase insulin excretion and increase blood sugar.

△ patients with hypertension: caffeine can raise blood pressure in some sensitive individuals, but it has no effect on those who are used to drinking about two cups a day.

△ patients with osteoporosis: coffee can increase the excretion of calcium and prevent the stomach of the elderly from absorbing calcium, which aggravates calcium deficiency in the elderly and accelerates the occurrence of osteoporosis. According to the American Journal of Epidemiology, regular coffee drinking in the elderly can increase the risk of osteoporosis and is the main reason for the high incidence of hip fracture in the elderly.

△ sedatives: generally speaking, people who take tranquilizers get excited when they drink more than three cups of coffee a day.

△ patients with epilepsy: caffeine can stimulate the brain motor center, xanthine will cause vasoconstriction, reduce brain blood flow, which is very disadvantageous to patients with epilepsy.

△ insomniacs: coffee can stimulate nerves and excite the brain, so people with neurasthenia and insomnia should not drink regularly, especially before going to bed.