Drinking black coffee regularly is harmful to women, such as insomnia, gastrointestinal discomfort and so on. Black coffee is a common drink in life, appropriate consumption of black coffee generally does not cause harm to the organism, but should not be regularly consumed. As black coffee contains caffeine, if you drink it for a long time or in large quantities, it may lead to central excitation, insomnia, anxiety and so on. Excessive intake of coffee will also cause stimulation of the gastrointestinal tract, increasing the burden on the stomach and intestines, so that the drinker may experience abdominal pain, diarrhea and other discomforts, and some patients with gastric ulcers can aggravate gastric ulcers and so on. At the same time, black coffee compared to other coffee, the caffeine content is relatively high, so women usually need to control coffee intake, avoid long-term or large amounts of food, so as not to cause damage to the body. It is recommended that women develop good dietary habits to ensure balanced nutritional intake, but avoid drinking a lot of black coffee, generally appropriate consumption of black coffee will not affect the health of the body.