👉 Marihuana refers to the psychoactive substance, often referred to as "cannabis," that is used for recreational and medicinal purposes. It is a plant from the family of the poppy family (Papaver alphae) native to South America. The active ingredient in marihuana is tetrahydrocannabinol (THC), which has been linked to various health effects, including dependence, addiction, and neurotoxicity. Marihuana can also be used for