Although the hot issue about coffee’s benefits and harms has not been solved, many people like to drink coffee in their daily life. You may be just one of them. As the potential danger of drinking coffee excessively has not been clearly found out, you should drink coffee moderately so as to prevent possible danger. Some experts advise people to drink one cup of coffee in a day, and some experts advise two cups or even more. You can drink coffee moderately based on your personal demand. 

One cup of coffee can help you protect heart and brain. According to the research in Greece, one cup of coffee in a day can effectively protect the arteries and adjust blood pressure in human body. In order to maximize the effect of coffee, you should drink coffee at right time. The metabolism of caffeine usually needs 8 hours. Therefore, you should not drink coffee in the afternoon. The unfinished metabolism of caffeine can seriously affect your sleep in the evening.

Two cups of coffee can help you improve your memory. The experts have investigated that the moderate intake of caffeine can improve memory for human body. However, you must control the intake amount of caffeine within 200 milligrams. If you drink coffee excessively, your reproductive ability can be seriously decreased.

Three cups of coffee can help women prevent ovary cancer and help men prevent gall-stone. However, if you drink three cups of coffee in a day, your health will also be endangered. For example, your heart will be attacked and blood pressure can be raised.

Four cups of coffee with 400 milligrams of caffeine can enhance your immunity to throat cancer, colon cancer, breast cancer, diabetes, and so on. However, four cups of coffee can also decrease your immunity to rheumatoid arthritis.

If you drink five or more cups of coffee in day, your health can be really seriously destroyed. The intake of excessive coffee can seriously disturb the absorption of calcium and cause the loss of mineral substances and vitamins. The deficiency of calcium, mineral substances and vitamins can cause cardiovascular diseases. However, if you drink five or more cups of coffee, your liver can be protected well.

Therefore, it can be seen that the intake of coffee can protect your health and endanger your health at the same time. You should know well about your own body and drink coffee moderately based on your own situation.