How much coffee is best to drink a day? Summary of the pros and cons of drinking coffee!

Coffee is an indispensable drink in today's society. Some people say that drinking coffee has many benefits, while others say that drinking coffee has disadvantages. So, are there more benefits or disadvantages to drinking coffee? Today, I will introduce the pros and cons of drinking coffee to you. I will also tell you how many cups of coffee you should drink a day.

The pros and cons of drinking coffee

1 cup of coffee

Benefits: Greek researchers found that drinking a cup of coffee a day can keep arteries healthy and stabilize blood pressure after studying 485 people over the age of 65. A survey of 600 volunteers at the University of Bristol in the UK also showed that drinking a cup of coffee a day can enhance brain power.

Disadvantages: Caffeine takes 8 hours to be completely eliminated from the body, so if you drink coffee after 3 or 4 pm, you are likely to have sleep disorders.

2 cups of coffee

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

Disadvantages: If you are pregnant, coffee intake should be less than two cups, otherwise it will increase the risk of miscarriage.

3 cups of coffee

Benefits: A study published in the American Journal of Chemical Medicine found that drinking three cups of coffee a day can reduce a woman's risk of ovarian cancer by one-fifth. Men who drink three cups a day have a 40% lower risk of gallstones.

Disadvantages: A 2006 US study showed that drinking three cups of coffee a day increases heart rate and slightly raises blood pressure, which may increase the risk of heart attack.

4 cups of coffee

Benefits: A study by the University of Utah found that 4 cups of coffee contains about 400 mg of caffeine, which can reduce the risk of oral and laryngeal cancer by 39%. In addition, it can also reduce the risk of colon cancer, breast cancer and type 2 diabetes.

The bad: Drinking 4 cups of coffee a day doubles your risk of rheumatoid arthritis.

5 cups or more

Benefits: A 10-year study of 90,000 people by Tokyo researchers found that drinking five cups of coffee a day could reduce the risk of liver damage by three-quarters.

Disadvantages: Caffeine interferes with calcium absorption and increases the risk of osteoporosis. Drinking too much will accelerate the loss of minerals and vitamins in the body. While raising blood pressure, it also increases the risk of cardiovascular disease.

Benefits of Coffee

1. Refreshing coffee contains caffeine, which can stimulate the central nervous system, promote the decomposition of liver glycogen, and increase the blood sugar level. Drinking it in moderation can temporarily make people energetic and quick-witted.

2. Anti-radiation coffee can strengthen the heart and improve the body's basal metabolism, and can relieve cerebral vasospasm and tracheal smooth muscle spasm. Drinking coffee in moderation can reduce radiation damage caused by light waves, electromagnetic waves, etc. People are inevitably exposed to various radiations in life, such as light waves, electromagnetic waves, etc., which will cause different degrees of damage to the body over time. Drinking coffee in moderation can reduce this damage.

3. Inhibit liver cancer. A study by the Medical University of Japan found that a cup of coffee a day can inhibit liver cancer. Coffee contains caffeine, which can stimulate the central nervous system, promote the decomposition of glycogen, and increase blood sugar. Drinking it in moderation can temporarily make people energetic and quick-witted. Drinking it after exercise can eliminate fatigue, restore physical strength, and invigorate the spirit.

Disadvantages of coffee

1. Susceptible to infertility

Women who drink one cup of coffee a day are more likely to suffer from infertility than women who do not drink coffee. Relevant experts have investigated 104 women who have the habit of drinking coffee, and about 50 of them are not easy to conceive. Some fertility experts also believe that this is a small-scale study and cannot finally prove the special effect of coffee on fertility. However, researchers emphasize that if the cause of infertility cannot be explained medically, it should be considered that infertility is related to caffeine.

2. Increased risk of myocardial infarction

Medical scientists from the Boston University School of Public Health conducted a four-year study on 858 women aged 45-69 who suffered their first myocardial infarction and 858 women who had never had a myocardial infarction. The results showed that drinking five or more cups of coffee a day can increase women's risk of myocardial infarction by 70%, and the risk increases with the amount of coffee consumed.

3. Prone to osteoporosis

Researchers at the University of California, USA, conducted a survey on 980 elderly women aged 50-98. The results showed that elderly women who drank more than two cups of coffee a day for a long time without drinking milk, regardless of their age and obesity, would have reduced bone density in their hips and spines, and the degree of reduction was related to the duration of the habit and the amount of drinking. This is because caffeine can combine with free calcium in the human body and be excreted through urine. The reduction of free calcium will inevitably cause the decomposition of bound calcium, thus leading to osteoporosis.

Friends who like to drink coffee will have doubts about how much coffee to drink every day. The above editor introduces this question to you. I believe that after reading the editor's introduction, you should have a better understanding of the pros and cons of coffee. Drinking coffee appropriately is good for the body, but drinking too much will harm the body.

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