The following are the dangers of drinking too much coffee:

1. Female infertility

Women who drink one cup of coffee a day are more susceptible to the disease than women who do not drink coffee. Infertility. Relevant experts once investigated 104 women who had the habit of drinking coffee, and about 50 of them had difficulty in conceiving. Some fertility experts believe that this is a small-scale study and cannot conclusively prove the special effect of coffee on fertility.

2. Myocardial infarction

Medical scientists from the Boston University School of Public Health examined 858 women who suffered myocardial infarction for the first time between the ages of 45 and 69 and 858 women who had never had a myocardial infarction. A four-year study of women who had had a myocardial infarction showed that drinking five or more cups of coffee a day increased a woman's risk of a myocardial infarction by 70%, and that the risk increased with the amount of coffee consumed. Increase.

3. Osteoporosis

Researchers from the University of California in the United States conducted a survey on 980 elderly women aged 50 to 98. The results found that those who drink more than 2 cups of coffee a day for a long time For older women who do not drink milk, regardless of their age or degree of obesity, the bone density of their hip bones and spine will decrease, and the degree of decrease is related to the length of time the habit lasts and the amount of drinking.

4. Abnormal fetus

In the early 1980s, Dr. Cowling of the U.S. Food and Drug Administration discovered in experiments that feeding mice the equivalent of 12 adult drinks per day After ~24 cups of strong coffee, pregnant mice will give birth to malformed mice. For this reason, researchers, in the name of the U.S. Food and Drug Administration, warn pregnant women that they should stop drinking coffee.

5. Pregnancy-induced hypertension

Pregnancy-induced hypertension is a disease unique to pregnant women. Patients present with edema, high blood pressure and proteinuria. If not prevented and treated in time, it can endanger the mother and fetus. Safety. According to an Australian study, drinking just a few cups of coffee a day can raise blood pressure. For this reason, pregnant women should not drink coffee.

Extended information:

Benefits of drinking coffee in moderation:

1. Coffee can enhance your physical fitness

Drink it one hour before exercise With a cup of black coffee, your performance can improve by 11-12%. Caffeine increases adrenaline levels in the blood. Adrenaline is your body's "fight or take off" hormone that helps you prepare for physical activity.

2. Coffee can help you lose weight

Many people have this question, will drinking coffee make you gain weight? Coffee contains magnesium and potassium, which help the body use insulin, regulate blood sugar levels, and reduce cravings for sweets and snacks. Coffee can help you burn fat. Caffeine helps fat cells break down body fat and use it as fuel for exercise.

3. Coffee can help you focus and stay alert

A moderate intake of 1-6 cups of coffee a day can help you focus and improve mental alertness.

4. Coffee reduces the risk of death

Research shows that coffee drinkers have a 25% lower overall risk of premature death than non-coffee drinkers.

Reference: The dangers of drinking too much coffee--People's Daily Online