Marijuana, also known as cannabis, is a plant that has been used for thousands of years for various purposes, including medicinal, recreational, and industrial applications. The main psychoactive component in marijuana is THC (tetrahydrocannabinol), which affects the brain and can alter mood, perception, and behavior. Marijuana can be consumed in various forms, such as smoking, vaping, or as edibles. In addition to its recreational use, marijuana is also studied for its potential therapeutic benefits. It may help alleviate symptoms of conditions like chronic pain, anxiety, and nausea. The legal status of marijuana varies widely around the world, with some places allowing its use for both medical and recreational purposes, while others maintain strict prohibitions.