THC (delta-9-tetrahydrocannabinol or Δ9-THC) is the most abundant cannabinoid and is also the primary psychoactive ingredient in cannabis. Without THC, there would be no “high”. This is because THC mimics a neurotransmitter that naturally occurs in our brains called anandamide. Anandamide attaches to proteins in the brain called cannabinoid receptors, which then send signals related to pleasure, memory, thought, perception and coordination. In short, THC works by hijacking these natural cannabinoid receptors to create feelings of euphoria, relaxation, hyperesthesia and giddiness. Conversely, if taken in excess, it is THC that causes confusion, anxiety and paranoia.
This is why proper dosing is vitally important to having a meaningful experience.
Along with being almost entirely responsible for your cerebral high, THC is also associated with a number of health benefits. Because cannabis science is in its infancy, with the full and specific benefits still being explored, more benefits are likely to come. Existing research shows significant evidence that THC provides relief from chronic pain, increases appetite while reducing nausea, lessens muscle cramps and tremors, reduces inflammation and aids sleep.