Caffeine is a naturally occurring substance found in tea and coffee beens. Caffeine often been added to Soft drink and Energy drink and Drugs. Caffeine binds to Adenosine Receptors and is therefore regarded as an Adenosine Antagonist. After drinking a few cups of coffee, 50% of Adenosine Receptors are totally blocked by Caffeine. Toxic Effects of Excessive Caffeine Consumption –…