Coffee is one of those drinks that love and drink all people. Someone is limited to one cup at breakfast, but for some coffee becomes almost a drug, without which a person simply cannot work. Is it dangerous? And, in general, is there bad coffee, as many believe? Is it harmful? Importantly, accused of coffee - it's a possibility of addiction from him. Many think that caffeine - a drug that can cause serious psychological and physical dependence. Others are convinced that coffee is the result holds no more than chocolate. They both increase the concentration of the happiness hormone - serotonin and affect the pleasure centers in the brain. Doctors believe that any drug must possess three properties: addictive, psychological and physical dependence. Coffee also satisfies only one of these requirements: it can actually cause physical dependence (for the total elimination of coffee in many observed headaches, drowsiness, lethargy, confusion, irritability, and nausea).

It is not recommended to drink it to people with atherosclerosis. Also, it is not recommended to drink coffee for older people and children. But how many cups a day can be called a safe dose? Most agree on the fact that 1-2 cups of coffee a day cannot hurt health. But more serious doses may in some cases act on the body damaging, for example, preventing the absorption of calcium. In addition, if moderate consumption of coffee can only identify any existing violations in the digestive tract (heartburn, gastritis, etc. q. ), then large doses of coffee can themselves cause many disruptions in the body.

And if 2 cups of coffee a day can relieve fatigue, improve attention, increase the reaction rate and physical endurance, the high doses (for each person his own), causes increased irritability and nervousness. If you have high blood pressure (hypertension), its better you don't drink coffee. But people with low blood pressure coffee can be useful. Many hypertensives simply cannot exist without it, using it almost like a drug. Coffee really can improve performance, reduce fatigue and promote alertness. Coffee is not recommended for daily use for those who suffer from nervous disorders, cardiac arrhythmias, diseases of the gastrointestinal tract, insomnia, migraine. In such cases, coffee may trigger a worsening of the disease.