Caffeine – wakes or breaks?

Abstract

Coffee was primarily discovered in the ancient coffee forest on the Ethiopian plateau in the 15th century. Coffee arrived in Europe in the 17th century and spread to other parts of the continent. Coffee contains caffeine, which is a psychoactive stimulant of the central nervous system. The caffeine content of seeds of different coffee species varies from 0.4 to 2.4% dry weight. Enzymes that break down caffeine are partially hereditary, therefore this may effect individuals differently. Caffeine works via short-term preventing tiredness and enhancing focus. Various amounts of this may be discovered in cola, tea, coffee, cocoa and chocolate. Along with alcohol and nicotine, caffeine is one of the top three mood-altering drugs used globally.