When is the best time to drink coffee and how many cups of coffee are best every day?

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How many cups of coffee are best to drink every day?

1 cup of coffee: Greek researchers studied 485 people over the age of 65 and found that one cup of coffee a day can keep arteries healthy and stabilize blood pressure. A survey of 600 volunteers at the University of Bristow in the UK also showed that one cup of coffee a day can boost brainpower.

2 cups of coffee: a study by the University of Florida found that 200 milligrams of caffeine, equivalent to two cups of coffee, can prevent memory loss and Alzheimer's disease. Research in the International Journal of Sports Medicine also shows that drinking coffee 30 minutes before exercise can help improve performance.

Three cups of coffee: a study published in the American Journal of Chemical Medicine found that three cups of coffee a day reduced a woman's risk of ovarian cancer by one percent. Men who drank three drinks a day had a 40% lower risk of gallstones.

Four cups of coffee: a study by the University of Utah found that four cups of coffee contains about 400 milligrams of caffeine, which can reduce the risk of oral and throat cancer by 39 percent. In addition, it can reduce the risk of colon cancer, breast cancer and type 2 diabetes.

More than five cups: a 10-year study of 90,000 people by researchers in Tokyo found that five cups of coffee a day reduced the risk of liver damage by three to four.

What are the advantages and disadvantages of coffee?

The benefits of coffee:

1. Coffee contains certain nutrients. Nicotinic acid in coffee contains vitamin B, which is higher in roasted coffee beans. And there are free fatty acids, caffeine, tannic acid and so on.

2. Coffee is good for the skin. Coffee can promote metabolic function, activate digestive organs, and has a great effect on constipation. Taking a bath with coffee powder is a kind of thermotherapy, which has the effect of losing weight.

3. Coffee can relieve fatigue. In order to eliminate fatigue, we must supplement nutrition, rest and sleep, and promote metabolic functions, and coffee has these functions.

The disadvantages of coffee:

1. Cause anesthesia. If you halve the amount of coffee consumed by a regular coffee drinker, it will cause headaches, muscle pain, fatigue, inattention, and nausea. The researchers suggest that coffee addiction should also be treated as a mental illness or drug addiction.

2. Drinking too much coffee can also lead to paralysis or impotence.

3. If you drink more than three cups of coffee in a row, there will be emotional tension, anxiety, shortness of breath and so on. If you drink more than ten cups, it will cause poisoning, dizziness, tinnitus, rising blood pressure, blurred vision, rapid arrhythmia, and, in serious cases, neurosis, muscle tremor, and so on. The dose of caffeine poisoning is generally 0.51g.

Know the best time to drink coffee

1. Drink coffee before and after meals

Before or half an hour after a meal, this time can be said to be the best time of day to drink coffee. Therefore, drinking coffee at this time can promote the digestion of food in the stomach and reduce the work burden on the stomach. And this will not adversely affect the normal function of the human body to absorb iron in food. In addition, people with iron deficiency anemia should avoid drinking coffee within half an hour before and after meals, so as not to aggravate iron deficiency.

2. Drink coffee before exercise

Mm who want to lose weight should pay attention that drinking coffee within half an hour before exercise is more conducive to the burning of body fat during exercise. As coffee enters the human body, it can speed up metabolism, thus increasing the amount of calories consumed by the body. Most of the calories are converted from fat, so drinking coffee half an hour before exercise can reduce body fat content.

3. Drink coffee in a tired state

Many people will find that after a nap, the body is still tired, so you might as well drink a cup of coffee to refresh yourself and take away the fat attached to your intestines and stomach after lunch. Generally speaking, drinking a cup of coffee can be refreshing for four hours. Therefore, it is best not to drink coffee at night, so as not to affect sleep.

Which people are not suitable for drinking coffee?

1. Coffee is not suitable for children

Many foreign nutritionists have confirmed 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.

2. Coffee is not suitable for pregnant women.

Scientists in California have proved 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, the baby's weight is generally low, and the natural mortality rate is high. Therefore: pregnant women had better not drink coffee.

3. Coffee is not suitable for women and the elderly.

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.