What's the harm of drinking coffee? Will you get angry if you drink coffee?

The caffeine in coffee is difficult to dissolve in cold water, but easily soluble in hot water. Caffeine stimulates the cerebral cortex, eliminates drowsiness, increases feeling and thinking, and can be used as a cardiotonic agent to regulate heart function, as well as dilating kidney blood vessels and diuresis. However, caffeine is not just coffee. Usually a cup of coffee with 60-65mg caffeine. But excessive caffeine intake is prone to tinnitus and myocardial hyperactivity (the heart beats rapidly and the number of pulses increases). And the pulse is uneven, so you must drink the right amount of coffee.

Coffee is recognized as a healthy drink, but drinking coffee must be reasonable and scientific in order to be beneficial to health.

Having a drink after getting up in the morning is a wake-up call. A light sip at work during the day can refresh you, and the coffee can be a little stronger. It is advisable to drink coffee slightly after dinner or in the evening. Both coffee and tea have refreshing effects, but they are not suitable for drinking during meals and should be drunk after meals. Some friends like coffee very much, but they are afraid that they will get angry if they drink it often. Caffeine is a softer stimulant in coffee, it can improve the sensitivity and attention of the human body, accelerate the metabolism of the human body, improve the mental state and physical fitness of the human body. At present, caffeine has been found in about 60 plants, of which tea and coffee are the best known. In some large coffee-consuming countries, people consume an average of about 250-600 milligrams of caffeine a day. After repeated scientific research and analysis, this dose has no side effects on the human body. So drinking coffee won't get angry.

We often see many people order coffee, this way of drinking coffee is not easy to be healthy. Should be served with a cup of white water when tasting coffee, this has two advantages: first, drink a mouthful of white water before tasting coffee, flush away the bad smell in the mouth, and then taste will feel mellow. Second, due to the diuretic function of coffee, drink more white water to improve urination and promote renal function. In this way, not only taste the delicious coffee, but also do not have to worry about getting angry, it is really killing two birds with one stone.

The disadvantages of drinking coffee:

1. Confusing caffeine in times of stress helps to improve alertness, agility, memory and concentration. But drinking more coffee than you are used to will produce the same dose of stimulants that you are used to, which can cause nervousness. For people with anxiety disorders, caffeine can worsen symptoms such as sweaty palms, palpitations and tinnitus.

two。 Aggravate high blood pressure 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 lot 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. Some people who drink coffee all the year round think they are immune to the effects of caffeine, but this is not the case. One study shows that blood pressure can rise for up to 12 hours after drinking a cup of coffee.

3. Induced osteoporosis caffeine itself has a good diuretic effect. If you drink a lot of coffee for a long time, it is easy to cause bone loss, which will adversely affect the preservation of bone mass. For women, it may increase the threat of osteoporosis. But the premise is that people who don't get enough calcium in normal food, or people who don't move very often, plus women after menopause, calcium loss caused by lack of estrogen, coupled with a large amount of caffeine, may pose a threat to bones. If you can enjoy it in a reasonable amount, you can still stop eating for fear of choking.

In addition, the following six types of people should not drink coffee: suffering from high blood pressure, coronary heart disease, arteriosclerosis and other diseases-long-term or heavy consumption of coffee can cause cardiovascular disease. Older women-Coffee reduces calcium and causes osteoporosis. After menopause, women need to add ten times the amount of calcium every day. People with stomach problems-drinking too much coffee can worsen stomach problems. Pregnant women-drinking too much coffee can lead to fetal malformation or miscarriage. People with vitamin B1 deficiency-vitamin B1 can maintain the balance and stability of the nervous system, and coffee has a destructive effect on it. Cancer patients-drinking too much coffee is at risk of cancer to normal people.