The ideal thing is to drink it after meals, which is beneficial and harmless. One of the benefits is to prevent allergic attacks. Asthma or allergic rhinitis is caused by parasympathetic nerve excitation of allergic system. If we can stimulate the sympathetic nerve and inhibit the parasympathetic nerve, it will help to prevent the attack. Especially for patients with severe allergies, some slight incentives can cause physical discomfort, coupled with psychological fear of allergies, often out of control. Therefore, it is suggested to have a cup of coffee in advance when allergies and asthma are about to attack (I can feel the patient), which is quite preventive. In addition to exciting work efficiency, patients have a sense of security after drinking coffee, which is better than some people who don't have seizures.
Of course, the so-called "too much is too late, even the best things should be enough." In principle, two or three cups of coffee a day are appropriate. Most people will feel sick if they drink four or five cups, so be careful. In principle, no matter what kind of stimulating drinks, it is better not to exceed three cups a day. Advantages and disadvantages of coffee:
1. Coffee contains some nutrients. Nicotinic acid in coffee contains vitamin B, and roasted coffee beans have higher content. But also free fatty acids, tannins and so on.
2. Coffee is good for the skin. Coffee can promote metabolic performance and activate digestive organs, is it especially effective for constipation? Bathing with coffee powder is a kind of hyperthermia, which has the function of losing weight. Drinking a cup of coffee after a meal also helps digestion.
3. Coffee has the function of relieving alcoholism. Drinking coffee after drinking will quickly oxidize acetaldehyde converted by alcohol, decompose it into water and carbon dioxide and excrete it.
4. Can coffee eliminate fatigue? Eliminating fatigue requires supplementing nutrition, resting and sleeping, and promoting metabolic functions, and coffee has these functions.
Three cups of coffee a day can prevent gallstones. About the coffee contained, it can stimulate gallbladder contraction and reduce cholesterol which is easy to form gallstones in bile. Recently, researchers at Harvard University found that men who drink two or three cups of coffee a day have a lower risk of gallstones than 40%.
6. Drinking coffee regularly can prevent radiation injury. Radiation hazards, especially electrical radiation, have become the prominent pollution at present. Indian atomic researchers in Baba reached this conclusion in mouse experiments and asked whether it could be applied to humans.
7. The function of coffee. Coffee has the functions of resisting oxidation, protecting the heart, strengthening bones and muscles, benefiting the waist and knees, stimulating appetite, promoting eating, reducing fat and digestion, inducing resuscitation and removing dampness, promoting blood circulation and removing blood stasis, calming wind and relieving spasm.
8. The influence of coffee on mood. Experiments show that drinking 300 mg (about 3 cups of brewed coffee) every day will have a good effect on a person's alertness and mood.
The following six kinds of people should not drink coffee:
Suffering from hypertension, coronary heart disease, arteriosclerosis and other diseases-drinking coffee for a long time or in large quantities can cause cardiovascular diseases.
Older women-coffee can reduce calcium and cause osteoporosis. After menopause, women need to supplement ten times as much calcium every day.
Patients with stomach trouble-drinking too much coffee will make stomach trouble worse.
Pregnant women-drinking too much coffee can lead to fetal malformation or miscarriage.
Vitamin B 1 deficiency-vitamin B 1 can maintain the balance and stability of the nervous system, and coffee can destroy it.
Cancer patients-drinking too much coffee is dangerous for ordinary people.
Because coffee stimulates the brain so strongly that it directly affects the mental state, when coffee was first introduced to Europe in the16th century, people thought that coffee could only be drunk with a doctor's prescription. In the past four or five centuries, with the vigorous development of coffee culture, people can't live without coffee for a day, but the medical profession has suggested that the influence of coffee on the human body is not only refreshing.
Let's start with the refreshing effect of coffee. According to the research, drinking 100-200mg every day is enough to refresh and harmless to the body; For office workers, drinking coffee is the most suitable time, when they have breakfast in the morning, when they first arrive at the office, after lunch break, and when they are ready to start busy work in the afternoon. At this time, a cup of coffee can avoid the usual drowsiness after dinner.
The study also found that, for the average person, a cup of coffee in the morning and a cup of coffee in the afternoon have the best refreshing effect. If it exceeds this amount, it will not only fail to achieve the refreshing effect, but also make people feel anxious.
Drinking too much coffee can also lead to the loss of calcium, and the elderly, especially middle-aged and elderly women, pose a great threat to osteoporosis. Two or more cups of coffee a day will increase the probability of fracture by about 50%, which is shocking. Experts believe that it is safest for the elderly to drink coffee once a day.
There may be some things you don't know about the advantages and disadvantages of coffee:
Filtering coffee will not increase cholesterol compared with others, while drinking coffee will slightly increase LDl bad cholesterol, but it will also increase HDL good cholesterol.
Coffee can stimulate about one-third of healthy people to defecate. Sometimes when defecation is not smooth, drinking a cup of strong coffee will have an unexpected laxative effect.
Coffee can reduce the incidence of Parkinson's disease.