A Review of the Biochemical and Haematological Effects of Caffeine

Caffeine is a xanthine alkaloid that acts as a stimulant drug. It exists naturally in certain plants such as coffee beans, kola nut, tea leaves, cocoa and can be found in different food and drinks which includes; coffee, tea, chocolate, beverages, energy Caffeine is one of the most popularly consumed psychoactive substance in the world and for many people caffeine is included in their daily routines by consumption of drinks of food with caffeine content. For young folks it is used to enhance mental alertness and for athletes in enhancing performance. However, the consumption of caffeine exhibits different effects on the human body, and when taken in excess over a period of time can result in adverse health hazards