Coffee knowledge who is not suitable to drink coffee?

Coffee beans are rich in trace elements, which can be said to be nutritious, but not everyone is suitable for drinking coffee, because coffee contains caffeine and is not always suitable for some specific people.

Coffee is not suitable for newlyweds: medical experts have conducted sperm killing tests on a variety of caffeinated drinks on the market, and the results show that they can kill sperm to varying degrees. Therefore, newly married men drinking caffeinated beverages will directly hurt sperm and affect men's fertility. Once conceived, it may lead to fetal deformities or congenital deficiencies.

Coffee is not suitable for pregnant women: scientists in California have confirmed that caffeine inhibits the normal growth of the fetus in the mother. Due to drinking too many caffeinated drinks, babies tend to be underweight and have a high natural mortality rate.

It is not suitable to drink coffee after drinking: if liquor is drunk with caffeinated beverages, it will aggravate the damage of alcohol to the human body. This is because both alcohol and caffeine have exciting and inhibitory effects, turning the brain from extreme excitement to extreme inhibition, stimulating vasodilation, accelerating blood circulation, greatly increasing the burden on the heart and detoxification of the liver. Therefore, it is not suitable to drink coffee after drinking, which will increase the burden on the body and affect the normal operation of the endocrine system.

It is not suitable to drink coffee when smoking: medical experts have found that caffeine in coffee and cocoa drinks, under the action of cigarette nicotine mutagenic substances, is easy to cause mutations in some tissues and cells of the human body, and even induce cancer.

People with calcium deficiency are not suitable for coffee: foreign medical researchers have investigated and tested people who regularly drink caffeinated drinks and found that the amount of calcium excreted in their urine is twice as high as those who do not drink caffeinated drinks. If you drink two cups of coffee drinks, you will lose about 15 milligrams of calcium in the body, so people who often drink this drink should eat more beans, bean products, shrimp skin, kelp, Laver, fungus and other calcium-rich foods.

People with high blood fat are not suitable for drinking coffee: men who drink five caffeinated drinks a day have much higher plasma cholesterol than non-drinkers, especially the increase in low density lipoprotein associated with atherosclerosis, which has the effect of promoting atherosclerosis.

It is not suitable for children to drink coffee: ADHD in children is related to frequent drinking of caffeinated drinks, which can cause mental irritability, undiscipline, declining academic performance, and so on.

It is not suitable for the elderly to lack calcium more seriously, coupled with less food intake, the daily absorption of calcium is not much, which is far from the metabolic needs. Caffeine has a diuretic effect and can reduce the amount of calcium absorbed by half. If the elderly often drink this drink, it will only aggravate the lack of calcium in the body and cause osteoporosis.