FAAH (Fatty Acid Amide Hydrolase) – This critical enzyme that breaks down anandamide and other endocannabinoids. FAAH’s enzyme activity can influence the medical properties of cannabinoids and work together to affect mood, appetite, motivation, perception of pain and pleasure, and memory. Changes in FAAH enzyme activity have been scientifically linked to differences in the way people react to medical cannabis. FAAH possesses the ability to hydrolyze (“breaks down by water”) a range of fatty acid amides including Anandamide. This serves as a “messenger” molecule playing a role in pain, depression, appetite, memory and etc., and serves as the endogenous ligand for cannabinoid receptors.