Scientists have decided to analyze the facts about the effect of coffee on health, depending on how much we drink on average during the day.
A cup
Pros: Drinking a cup of coffee a day regulates blood pressure values, the Greek study conducted on 500 people aged 65 to 100 years has revealed.
In addition, they have discovered that people who drink about a cup of coffee a day have healthier blood vessels than those who do not drink coffee, while scientists believe that the antioxidants in coffee are responsible for this, because they increase the production of nitric oxide and thus help relax the walls of the arteries. Research from the University of Bristol has shown that even a cup of coffee stimulates the brain to enhance work.
Cons: Even a cup of coffee can disrupt the normal rhythm of sleep, i.e. of sleepiness, says Sian Potter from the British Dietetic Association. He has discovered that caffeine takes about eight hours to leave the body, so those who have problems sleeping should not drink coffee after 4 p.m.
Two cups
Pros: This amount of coffee helps to protect the body from Alzheimer’s disease, scientists from the University of Florida have discovered, because about 200 milligrams of caffeine they contain is enough to prevent the accumulation of proteins in the brain, one of the causes of Alzheimer’s. .
Drinking two cups of coffee half an hour before exercise increases physical abilities and energy, the Journal of Sports Medicine study reported, because it stimulates the production of fatty acids that our body uses as fuel.
Cons: Pregnant and lactating women are not recommended to consume more than 200 milligrams of caffeine, because higher values trigger the release of higher levels of the stress hormone cortisol, as well as adrenaline, which can increase the risk from spontaneous abortion.
Three cups
Pros: The caffeine found in three cups of coffee a day reduces the risk of ovarian cancer by a fifth, and this advantage is even greater for women who have never taken hormonal birth control pills and in whom the risk is higher. small by about 40 percent.
Men who drink three cups of coffee a day have a 40 percent lower risk of developing gallstones, while scientists believe caffeine stimulates gallbladder contractions.
Cons: Three cups of coffee a day increase the risk of a heart attack in people prone to heart disease, because this amount of caffeine speeds up the work of the heart and easily raises blood pressure.
Four cups
Pros: The total consumption of 400 milligrams of caffeine is the ideal dose for the maximum effect of antioxidants from coffee, and it halves the risk of forming many types of cancer such as throat and prostate, as well as the risk of diabetes, American research has revealed.
Cons: People who drink four cups of coffee a day have twice the risk of rheumatoid arthritis.
Five cups
Pros: The risk of significant liver damage is reduced by 75 percent by drinking five cups of coffee a day, ten years of research by the Tokyo Cancer Center found, and scientists believe that the antioxidant action of coffee is responsible for this protective effect.
Cons: Several different studies have shown that this amount of coffee is a dangerous factor for the development of osteoporosis, because caffeine prevents the absorption of calcium in the bones.
Six or more cups
Pros: Drinking six cups a day reduces the risk of skin cancer by more than 30 percent, a University of Detroit study of more than 90,000 women found, while experts say caffeine protects skin cells from sun damage. .
Cons: Six cups of coffee a day is a large amount of caffeine which can lead to dehydration, because coffee acts as a diuretic which eliminates water and vitamins from the body and can stimulate the release of hormones which are related to anxiety and stress and increase the risk of heart attack.
