All of the medicinal benefits that CBD is able to offer comes down to how it interacts with the endocannabinoid system in the body. This system is responsible for regulating a number of crucial factors in the body including appetite, sleep, memory, pain and immune function. Cannabinoids that are naturally produced in the body interact with this system to influence these factors, and CBD (a cannabinoid itself) can also interact with the endocannabinoid system to induce similar effects.