Side effects of caffeine
What is caffeine? Caffeine is the most commonly used psychoactive substance in the world. We can find it in different types of food, from range of coffee and tea to chocolate and coke. It is naturally synthesized and it is found in leaves, seeds and fruits in more than 60 different plants.
Foods that contain caffeine
Caffeine can be found in a wide range of food products and some medicine. We can find it in coffee, tea, coke, chocolate, and in some fruits and seeds. As an additive is used in some painkillers, as an appetite reducer and in some drugs that relieve cold symptoms. Caffeine has no flavor.
Absorption and distribution
In the body is absorbed and distributed very quickly because it is soluble in water. This means that through the bloodstream can reach each cell, so if you consume regularly caffeine, than you have probably a certain amount of this substance in all cells of your body at any time. Because of the easily passage through cell membranes it is harder your body to completely clean out the cells. Simply said, the caffeine from the cup of coffee that we currently drink, remain in the body for several days.
Chemical composition and effect
Chemical caffeine has a similar chemical composition as adenosine and its underlying mechanism of action is contrary to adenosine. Adenosine has many important functions in the body, one of which is a suppressive act on neural activity. As adenosine antagonist, caffeine act as a stimulant on the secretion of neurotransmitters and stimulate neural activity.