What are the pros and cons of drinking N cups of coffee every day?

A cup of coffee

Pros: A Greek study found that drinking a cup of coffee a day can help lower blood pressure. Scientists believe this is because the antioxidants in coffee help increase the body's production of nitrogen oxides, which can relax blood vessel walls and thus lower blood pressure.

In addition, a study on the effects of coffee drinking on intelligence by the University of Bristol in the UK found that people who are accustomed to drinking a cup of regular coffee every day are smarter than those who drink low-caffeine coffee or do not drink coffee.

Disadvantages: Experts from the British Dietetic Association say that even if you only drink one cup of coffee a day, you may end up counting sheep at night because it takes about eight hours for the body to completely metabolize caffeine, so it's best not to drink coffee after 3 to 4 p.m., otherwise you'll suffer from insomnia.

Two cups of coffee

Pros: Scientists at the University of Florida say that drinking two cups of coffee a day can help reduce the risk of Alzheimer's disease. Drinking two cups of coffee thirty minutes before exercise can improve exercise performance.

Disadvantages: If you are pregnant, your daily caffeine intake should be limited to less than 200 mg, or less than two cups of coffee, because coffee can increase stress hormones in the body, thereby increasing the risk of miscarriage.

Three cups of coffee

Advantages: A report in the American Journal of Medicine - Cancer states that drinking three cups of coffee a day can reduce a woman's risk of ovarian cancer by 1/5, and the risk of ovarian cancer is reduced by 35% to 43%.

A study in the Journal of the American Medical Association found that men who drink three cups of coffee a day can reduce their risk of gallstones by 40%.

Disadvantages: Studies have found that people who drink three cups of coffee a day have an increased risk of heart disease. Scientists explain that after drinking three cups of coffee, the heart beats faster, which can cause a significant increase in blood pressure.

Another study from Lund University in Stockholm, Sweden found that drinking three cups of coffee a day could shrink women's breasts.

Four cups of coffee

Pros: Four cups of coffee contain about 400 mg of caffeine, which is the most effective amount of coffee for antioxidant effects. Scientists at the University of Utah found that people who drink four cups of coffee a day have a 39% lower risk of oral and laryngeal cancer.

Cons: Drinking four cups of coffee doubled their risk of developing rheumatoid arthritis. Researchers believe that coffee increases levels of certain chemicals in the body that can cause inflammation and joint pain.

Five cups of coffee

Pro: Researchers at the National Cancer Center in Tokyo found that drinking five cups of coffee a day reduced people's risk of severe liver damage by three-quarters.

Cons: Several studies have found that caffeine is an important factor in the development of osteoporosis because it interferes with calcium absorption.

Six cups of coffee

Pros: Drinking six or more cups of coffee a day reduces your risk of skin cancer by 31%, according to a study from Wayne State University in Detroit.

Cons: Drinking so much coffee may cause dehydration because coffee causes the loss of body fluids, which accelerates the loss of minerals and vitamins.

The material comes from the Internet.

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