The benefits and disadvantages of drinking coffee_Types and effects of coffee

1. People suffering from hypertension, coronary heart disease, arteriosclerosis and other diseases drink coffee for a long time or in large quantities, which can cause cardiovascular disease.

2, vitamin B1 deficiency is not suitable for drinking coffee, because vitamin B1 can maintain the balance and stability of the nervous system, and coffee has a destructive effect on it.

3. After menopause, women need to add ten times the amount of calcium every day. Drinking coffee in older women can reduce calcium and cause osteoporosis. Two or more cups of coffee a day increases the risk of fractures by about 50%. Experts believe that when older people drink coffee, one cup a day is the safest.

4. Excessive consumption of coffee in patients with stomach disease can lead to the deterioration of stomach disease.

5. Pregnant women drink too much coffee, which can lead to fetal malformation or miscarriage.

6. Drinking too much coffee has the risk of causing cancer to normal people.

7. Most people have the best pick-me-up effect with a cup of coffee in the morning and in the afternoon. Beyond this amount, it will not only fail to achieve the pick-me-up effect, but also make people feel restless.

8, diarrhea when drinking coffee, the diuretic effect of coffee, will promote the excretion of water in the body and aggravate diarrhea.

9, coffee will stimulate gallbladder contraction, people with gallstone tendency are strictly forbidden to drink coffee.

10. Drinking more coffee than you are used to drinking will produce the same dose of stimulants similar to those you are used to, causing nervousness. For people with anxiety disorders, caffeine can worsen symptoms such as sweaty palms, palpitations and tinnitus.

11. Caffeine is often combined with other simple painkillers because of its analgesic effect, but if you take it in large quantities for a long time, if you already have high blood pressure, using a large amount of caffeine will only make your situation worse. Because caffeine alone can raise blood pressure, coupled with emotional stress, it can have a dangerous multiplication effect, so people at risk of high blood pressure should especially avoid drinking caffeinated drinks during stressful times at work.

12. The metabolism of caffeine in normal adults takes 2 hours, but in patients with liver disease or liver insufficiency, the metabolism of caffeine may take 4-5 hours, so patients with liver disease must be careful when drinking coffee, it is best not to drink it after dusk, so as not to affect sleep due to long metabolic time, and it is best not to exceed 1 cup a day.

13. Children's half-life of caffeine metabolism will be prolonged due to the incomplete development of children's liver and kidney and poor detoxification ability, so generally speaking, children under the age of 12 need to ban caffeine intake. Even Europeans and Americans who drink coffee as boiled water all day long, there are very strict restrictions on children's drinking coffee.