The endocannabinoid system (ECS), named after the plant that led to its discovery, is a group of endogenous cannabinoids and corresponding endocannabinoid receptors located in the mammalian brain and throughout the central and peripheral nervous systems and organs. It is a »command and control« set of biochemical communication between endocannabinoids produced naturally by the human body and the receptors which are involved in processes such as thinking, memory, coordination, pleasure and time perception.