THC stands for delta-9-tetrahydrocannabinol, which is one of the many chemical compounds, known as cannabinoids, found in the cannabis plant. THC is primarily responsible for the psychoactive effects commonly associated with cannabis use. When consumed, THC interacts with cannabinoid receptors in the brain and nervous system, leading to various physiological and psychological effects. THC is known to produce a feeling of euphoria or "high," along with relaxation, altered sensory perception, increased appetite, and potential therapeutic effects such as pain relief and reduction of nausea. The potency of THC can vary between different cannabis strains and products, and its effects can be influenced by factors such as dosage, method of consumption, and individual tolerance. It's important to note that the legality of THC and cannabis products containing THC varies across different countries and jurisdictions. In some places, THC is classified as a controlled substance, while in others, it may be legal for medical or recreational use under certain regulations.