Clinical Endocannabinoid Deficiency. A new disease? Not really. This deficiency has nothing to do with Cannabis use (medical or recreational). It is a deficiency just a shortage of Vitamin D during winter.
Over ten years ago, a medical advisor, examined the evidence from the National Medical Library and came up with a theory. At least three conditions (migraine, fibromyalgia and irritable bowel syndrome — IBS) can have a common underlying cause - Clinical Endocannabinoid Deficiency.
Each system within the human body can develop a pathological disbalance which is called a disease. So can the Endocannabinoid System (ECS). The endocannabinoid system has by far more density of receptors within the human body than many systems; however, no disease has been linked YET to ECS deficiency.
Depression arises when serotonin is low. Alzheimer's disease is due to loss of acetylcholine activity, Parkinsonism due to dopamine deficiency.