THC, or tetrahydrocannabinol, is the primary and most abundant intoxicating compound found in most varieties of cannabis. THC belongs to the cannabinoid class of chemical compounds naturally produced by marijuana that readily interact with receptors throughout the body, primarily CB1 and CB2 receptors concentrated in the brain and central nervous system. This stimulates the release of various neurotransmitters to induce the wide range of recreational as well as therapeutic effects associated with being high. Research indicates THC holds promising anti-inflammatory, antioxidant, anti-spasmodic, appetite-stimulating, and neuroprotective properties. It may also help alleviate conditions like PTSD, chronic non-cancer pain, nausea, insomnia and Parkinson's when used responsibly. However, THC may induce anxiety, panic, paranoia or psychosis in those predisposed, so careful dosing is always advised, especially for new consumers.