Who can't drink coffee and which kinds of people are not suitable for drinking coffee?

Coffee is a favorite western-style drink, because coffee contains more caffeine, it has the functions of refreshing, excitatory nerve, appetizer and cardiotonic. However, caffeine is a drug, drinking too much will not only be addictive, but also cause poisoning and other consequences, not suitable for everyone.

The medical profession urges that coffee consumption must be moderate and not excessive, especially for those who are not suitable for drinking coffee, they should drink less and not drink as much as possible, and who cannot drink coffee? The following is a classification of people who are not suitable for drinking coffee:

(1) Children

Many nutritionists abroad have proved that children are the most unsuitable people to drink coffee. Because caffeine interferes with brain memory, although caffeine has a strong excitatory effect on the central nervous system, it can cause mental irritability, undiscipline and decreased academic performance in children, and caffeine may also increase the rate of cell mutation. In view of the fact that the various tissues and organs of the child's body are not fully developed, the ability of detoxification and resistance is weak, so it is extremely harmful to the body, it is best not to drink.

(2) pregnant women

Scientists in California have shown that caffeine can inhibit the normal development of the fetus in the mother, and if you drink too much coffee, it may increase the probability of miscarriage, that is, the baby is born smoothly, and the baby's weight is generally lighter and the natural mortality rate is high. Therefore, pregnant women had better not drink coffee.

(3) Women and the elderly after menopause

Excessive caffeine can lead to calcium loss, and drinking by the elderly will cause osteoporosis and increase the chance of fracture, while postmenopausal women need more than 10 times more calcium than premenopausal women, so postmenopausal women and the elderly had better not drink coffee.

(4) newlyweds

Scientists at Harvard Medical School in the United States have conducted sperm-killing experiments on caffeinated drinks. The results show that the new formula of caffeinated cola drinks can kill 58% of sperm, while the old formula of caffeinated cola drinks can kill all sperm. Therefore, if the newly married man drinks too much coffee, it will directly hurt the sperm and affect the fertility. If the injured sperm combines with the egg, it will lead to fetal deformity or congenital deficiency.

(5) those with high blood fat

In the experiment, the US Department of Health found that men who drank more than five cups of caffeinated drinks a day had higher cholesterol in their blood than those who did not drink caffeinated drinks, and caffeine significantly increased artery-related low density lipoprotein. This shows that caffeine drinks can promote arteriosclerosis. Therefore, often drink coffee or caffeine drinks, easy to promote arteriosclerosis, if hyperlipidemia people drink more, will accelerate the deterioration of the disease.

(6) rickets patients

In the experiment, foreign researchers found that people who regularly drank coffee or caffeine drinks excreted twice as much calcium in their urine as non-drinkers, and if they drank two cups of coffee or caffeine drinks at a time, they would lose 15 milligrams of calcium in the body. Therefore, people who often drink such drinks should pay more attention to the supplement of calcium, while rickets patients are caused by a serious lack of calcium, and if they drink coffee or caffeine drinks, it will undoubtedly make things worse.

(7) mentally stressed

Some people like to drink coffee when they are stressed and nervous at work, but they do not realize that this will increase the tension of work and study, resulting in higher blood pressure, faster heart rate and higher cholesterol in the blood. Researchers at Duke University in the United States have found that caffeine can accelerate the secretion of adrenaline, which can further aggravate the tense response of cardio-cerebrovascular and nerve tissues in people with mental stress, which is very harmful to health.

(8) regular drinkers

"Wine and Coffee" is only suitable for singing, not practical. Because both alcohol and caffeine have exciting and inhibitory effects, they can change the brain from extreme excitement to extreme depression, and speed up blood circulation, thus increasing the burden on the heart and liver detoxification and detoxification. If alcohol and coffee are drunk together, the damage will be many times greater than drinking alone.

(9) patients with gastric ulcer

Caffeine stimulates the secretion of stomach acid, and if patients with gastric ulcers drink too much coffee, it will worsen the course of peptic ulcers. And if you drink coffee on an empty stomach, it will lead to excessive stomach acid and aggravate the illness. Therefore, patients with gastric ulcers had better not drink coffee drinks.

(10) Vitamin B deficiency

Vitamin B plays an important role in maintaining the balance and stability of the nervous system, while caffeine stimulates the nervous system and destroys vitamin B. Therefore, vitamin B is prohibited for those who are deficient.

In addition to the above people who cannot drink coffee, for the sake of your health, normal people also try not to drink too much coffee, only 5 cups a day at most, and do not drink coffee before going to bed to avoid insomnia; it is not suitable to smoke and drink before and after drinking coffee, otherwise it will increase the burden on cardio-cerebrovascular and heart.