Many people enjoy a cup of coffee or tea to give them a boost. But is it safe? Learn more about caffeine..Caffeine Content of Drinks How Much Caffeine in Coffee, Soft Drinks, Tea Amount of Caffeine.Caffeine is a central nervous system CNS stimulant of the methylxanthine cl It is the world’s most widely consumed psychoactive drug.Unlike many other psychoactive substances, it is legal and unregulated in nearly all parts of the world..The earliest credible evidence of coffee drinking appears in Yemen in southern Arabia in the middle of the th century in Sufi shrines. It was here in Arabia that coffee seeds were first roasted and brewed in a similar way to how it is now prepared..
An average cup of coffee contains mg of caffeine, but some types contain over mg. This article lists the caffeine content in different coffee types..Find out how much caffeine is in coffee, tea, chocolate, cola, energy drinks, yerba mate and more with this guide to caffeine levels in drinks..