THC, or Tetrahydrocaannabinol, is the chemical responsible for most of the marijuana’s psychoactive effects. It behaves in much the same way as Endocannabinoids found in the body, attaching to receptors in the Endocannabinoid System.
Cannabinoid receptors in the body facilitate a large number of physiological and psychological reactions. These include affecting mood, pain-sensation, memory and learning ability. THC, when interacting with these receptors, stimulates the production of Dopamine. This can create a euphoric effect – often called “feeling high”. CBD (Cannabidiol), another cannabinoid found in the cannabis plant, can often impede the effects of THC.