Caffeine, which is found in the coffee, affects the brain – it increases mental work capacity, speeds up the reaction, increases energy and endurance, as well as stimulates physical activity. Drinking two cups of coffee every day, it stimulates the part of brain, which is responsible for short-term memory and ability to concentrate.
Two cups of coffee have positive effects on glucose metabolism as well, therefore it can reduce the risk of type II diabetes, and it also can reduce the risk of cervical cancer, but it does not mean that by increasing the amount of coffee these processes will be even more successful. Too much coffee or too much caffeine can cause anxiety, chills, and shivering.
Coffee is able to normalize low blood pressure, but people with high blood pressure should be careful with the usage of coffee. While two cups of coffee a day do not cause heart damages, regularly using this drink, in 60% of cases blood pressure may gradually rise.
Scientists have discovered evidences that caffeine stimulates hair growth, reduces different allergic reactions, and contains vitamin P, which strengthens capillaries and reduces the permeability of blood vessel walls thus strengthening them.
About three cups of coffee a day reduces the risk of gallstones, which is the result of crystallization of cholesterol. One cup of coffee a day is enough to reduce the risk of kidney stones by 10%. Studies of USA and Japan show that coffee is a powerful agent against liver cirrhosis – it is proven that drinking 3 – 4 cups of coffee every day a possibility of liver cirrhosis is for 80% lower than without coffee at all.
Drinking 3 – 4 cups of coffee a day you protect yourself against colon cancer, as coffee promotes colon’s operational activity and reduces the activity of negative micro-organisms.
Scientists have figured out that regular drinking of coffee reduces the risk of Parkinson’s disease by 50% – 80%. Parkinson’s disease is a disease of central nervous system, which causes disorders of speech and movement as well as causes trembling. Coffee also helps asthma patients – even one cup of coffee a day can reduce the symptoms of asthma. Regular usage of coffee can reduce expressions of asthma attacks by up to 25%.
People often discuss about coffee drinking during pregnancy – whether the pregnant should stop drinking coffee, or it is allowed to drink coffee during pregnancy. There are a lot of researches done in order to find an answer to these questions, and scientists have found that it is allowed to drink coffee during pregnancy if a woman has drunk coffee before pregnancy. However, it is not recommended to drink more than 2 – 3 cups of coffee a day (300 to 400 mg of caffeine a day). It would be wrong to start drink coffee during pregnancy, if a woman has not drunk it before pregnancy. Women, who have had the miscarriage, should avoid coffee, as there is a risk of repeated miscarriage. When breastfeeding a baby, a woman can drink coffee, but in small quantities, and it is better to drink coffee in the morning than in the evening, as mother’s milk contains caffeine, causing baby an anxiety and insomnia.