There are several cannabinoids with psychoactive effects, including THC, cannabinol, and delta-8-THC, with THC being the most potent and abundant. Most people seek these cannabinoids for adult or recreational purposes. On the other hand, other cannabinoids, such as CBD and CBG, are not psychoactive, although they have an affinity for the central nervous system and exert their actions on it. In fact, CBD counteracts the psychotomimetic effects of THC. 

Although THC has generated controversy around the legalization of cannabis due to some of its effects, such as altered memory and perception, it is essential to recognize its significant therapeutic effects. Actually, in certain clinical conditions, altered proprioception and memory can greatly benefit the treatment of pain and post-traumatic stress syndrome, respectively. 

THC has therapeutic properties demonstrated in varying degrees of evidence, including analgesia, anti-inflammation, neuroprotection, antioxidation, muscle relaxation, anti-emesis, antitumor action, and appetite stimulation, among others. It is used to treat different diseases, such as Parkinson’s and Multiple Sclerosis, which cause muscle stiffness, chronic pain of various causes, and to accompany chemotherapy and other antitumor treatments associated with different cancer treatments.