Aka: weed, grass, joint, blunt, reefer, mary jane, dope, buds

Marijuana is the dried leaves, flowers, stems and seeds from the Cannabis sativa or Cannabis indica plant, which contain the mind-altering chemical THC. While many states, including California, have legalized marijuana for medical or adult recreational use, there are still many risks and dangers you should be aware of. The amount of THC in marijuana has been increasing, which can lead to a greater risk of a harmful reaction or overdose; this is very common with “edibles” because they take longer to digest and feel high, so users consume more. Large doses of marijuana can lead to overdose, which can result in hallucinations, delusions, and risk of psychosis with regular use of high potency marijuana. Long term marijuana can impair brain development of young people ,and affects the regions of the brain that impact thinking, memory, and learning functions – some studies have even found that long term marijuana use that began when users were teens led to a decrease in IQ points, and long-term use has been linked to mental illness in some people.