Part 1. Role of the Endocannabinoids in Neuroinflammatory and Neurodegenerative Disorders: Cannabinoids for the treatment of neuroinflammation -- Endocannabinoids and Alzheimer's disease -- Cannabinoids in Parkinson's disease -- Cannabinoids in Huntington's disease -- Endocannabinoids and amyotrophic lateral sclerosis -- Endocannabinoids and epilepsy -- Endocannabinoids and migraine -- Part 2. Role of the Endocannabinoids in Psychological and Psychiatric Disorders: Cannabinoids and schizophrenia -- Cannabinoids and bipolar disorder -- Cannabinoids and the Tourette syndrome -- The role of endocannabinoid function in posttraumatic stress disorder: Modulating the risk phenotype and rendering effects of trauma -- Cannabinoids and drug addiction -- Cannabinoids and appetite (dys)regulation -- Part 3. Role of the Endocannabinoids in Impulsive and Compulsive Disorders: The cannabinoid system and impulsive behavior -- Cannabinoids and obsessive-compulsive disorder -- The endocannabinoid system: anorexia nervosa and binge eating disorder -- The endocannabinoid system and trichotillomania: a promising target for treatment -- Future perspectives: Cannabinoid CB2 receptor ligands and their therapeutic potential in mental diseases