the researchers found that the effects of caffeine on the human body has its individual characteristics. Therefore, some people drink invigorates, and others Vice versa – stimulates fatigue and sleepiness.

For sensitivity to coffee respond to adenosine receptors. Adenosine is a substance that is produced by the body and inhibits the processes of excitation. Caffeine is structurally similar to adenosine, so when applying it to the body’s adenosine receptors are blocked, and after taking coffee, the feeling of tiredness diminishes and there is a flow of forces, told candidate of biological Sciences Igor Smolin.

in addition, the impact of coffee on the body depends on the liver. If a person has liver disease, the caffeine is filtered out worse, and the body enters a greater amount. If the liver is healthy, then the effect of the caffeine will not be visible and tangible.

At the same time coffee consumption can serve as prevention of Alzheimer’s and Parkinson’s. A protective effect for brain have phenylindane – compounds that prevent the two main proteins responsible for the progression of the disease. These substances are formed during roasting coffee beans.

it is considered that a single dose of caffeine should not exceed 100 mg daily – 300 mg. For comparison, one Cup contains an average 95 mg of caffeine in an espresso 150 mg.