Delta 9 THC, or delta-9-tetrahydrocannabinol, is a psychoactive compound found in the cannabis plant. It is one of the primary cannabinoids responsible for the "high" associated with marijuana use. Delta 9 THC interacts with the body's endocannabinoid system, particularly the CB1 receptors in the brain, influencing mood, memory, and appetite. In addition to its recreational use, delta 9 THC has potential therapeutic benefits. Research suggests it may help alleviate symptoms of conditions such as chronic pain, nausea, and anxiety. However, its legal status varies by region, with some places allowing medical or recreational use while others prohibit it entirely.