Dr. Raphael Mechoulam first discovered our Endocannabinoid System or ECS in 1964. He was the first to discover the Cannabinoid Tetrahydrocannabinol (THC).  Three decades later, in 1992, Dr. Mechoulam made another important discovery by identifying anandamide, a naturally occurring human neurotransmitter. Anandamide is known as the BLISS molecule. Hence, in 1992, the newly discovered endocannabinoid system was named after the cannabis plant.  A functional cannabinoid system produced in our body is essential for health and is dormant in most people! Our ECS is the largest network of cell receptors in the body. The body naturally contains CB receptor sites designed to uptake phytocannibinoids like CBD. These are found in the brain, organs, connective tissues, glands and throughout the central and peripheral nervous system. Here is a great website http://mechoulamthescientist.com/ about Dr. Mechoulam.