Coffee is widely used as a stimulating drink and one of the most popular beverages in the world. Coffee is a drink that is prepared from roasted seeds of the coffee plant.
This drink originated in Ethiopia, in the Kaffa region, from where it was taken to Egypt and Yemen and by the 15th. century it had already been introduced to Armenia, Persia, Turkey and North Africa. From the Muslim world, coffee spread first in Italy and then in the rest of Europe and America.
From the large number of species and subspecies of coffee, two brands make up more than 90% of total production of coffee in the world, coffee Arabica and coffee Robusta. Coffee Arabica is a traditional coffee – of more than 2/3 of the world’s coffee production. Coffee Robusta has a strong flavor and contains more caffeine and is generally used for instant coffee. It gives more products than Arabica and is used as a cheaper substitute for coffee Arabica.
Caffeine, which is an alkaloid found naturally in coffee is light stimulus that produces different physical effects. Because coffee stimulates the cortex of the brain, it improves concentration. The athletes are advised sometimes to take a cup of coffee before the match to increase the resistance of muscles to exhaustion and to improve coordination.
However, these benefits are only in the case of small amounts of caffeine. Too much caffeine can cause side effects, acting as diuretic, stimulating gastritis, stomach irritation and irregular heartbeats.