Coffee health drinking coffee is harmful to cardiovascular system all the year round.

Coffee is delicious and refreshing. It is favored by many office workers, especially young women, but excessive coffee drinking is not necessarily a good thing. A female civil servant in Suzhou in her 20s drank only coffee or carbonated drinks every day and almost never drank plain boiled water in order to lose weight, and was found to have osteoporosis after a physical examination, the news website reported. Meng Qingzhi, a member of the Cardiology Department of the Chinese Physicians' Association and chief physician of the Department of Cardiology at Shanghai Broad Heart Hospital, warned that there is no problem drinking a small amount of coffee, but drinking too much is easy to increase the risk of heart disease.

Director Meng Qingzhi told us that patients with heart disease should drink little or no coffee, because caffeine will increase the heartbeat and cause anoxia in the heart and aggravate the disease. There are also some undrinkable times when coffee is not suitable for drinking. The editor specially sorted out the following "five inappropriate" for drinking coffee.

First, it is not suitable to drink coffee when smoking. Studies have shown that drinking coffee while smoking can lead to over-excitement of the brain, and caffeine can mutate some tissues of the body and even lead to the production of cancer cells under the action of mutagenic substances such as nicotine. A study in the United States proves that drinking a lot of coffee. At the same time, people who smoke a lot are prone to heart disease. However, after quitting smoking, drinking coffee alone has nothing to do with the occurrence of coronary heart disease. Therefore, coffee drinkers had better give up smoking, or at least not to smoke when drinking coffee.

Second, it is not appropriate to drink coffee when taking some drugs. When taking drugs such as dysentery and isoniazid, you should not drink coffee. Otherwise, it can cause nausea, vomiting, abdominal pain, diarrhea, dizziness, headache, arrhythmia and convulsions and other symptoms.

Third, people with coronary heart disease should not drink coffee. Caffeine in coffee can increase cholesterol in the body's blood, which can lead to an increase in low density lipoprotein associated with arteries. Therefore, people with coronary heart disease should not drink coffee, otherwise there is the possibility of aggravating the disease. The Boston University Medical Center in the United States has published the results of a study on the relationship between coffee and myocardial infarction in angina pectoris: people who drink an average of 3-5 cups of coffee a day are about 50% more likely to have a heart attack than those who do not drink coffee; those who drink more than 6 cups a day are 1 times more likely to have a heart attack.

Fourth, children should not drink coffee. Children's tolerance and excretion of caffeine are weak, drinking coffee may cause restlessness, nausea, vomiting and other symptoms. The organs of infants and young children are delicate and their development is not perfect, especially the nervous system is not perfect. Drinking coffee can cause nervous system dysfunction. Therefore, infants and young children not only can not drink coffee, but also should not drink caffeinated cola drinks.

Fifth, pregnant women and nursing mothers should not drink coffee. When pregnant women drink coffee, caffeine can quickly enter the fetus through the placenta, adversely affecting the normal development of the fetus; for example, excessive drinking of coffee by pregnant women for a long time will lead to abnormal development of the fetal nervous system, mental retardation, poor physical activity and other adverse phenomena. Nursing mothers drink coffee, and caffeine can have an adverse effect on the baby through breast milk.