
Cannabis - Wikipedia
Industrial hemp textile products are made from cannabis plants selected to produce an abundance of fibre. Cannabis also has a long history of being used for medicinal purposes, and as a recreational …
Cannabis (Marijuana) | National Institute on Drug Abuse (NIDA)
Sep 24, 2024 · Cannabis refers to the dried leaves, flowers, stems, and seeds of the cannabis plant. The plant has many different chemical compounds, including tetrahydrocannabinol (THC), which has …
About Cannabis | Cannabis and Public Health | CDC
Feb 15, 2024 · Cannabis, which can also be called marijuana, weed, pot, or bud, refers to the dried flowers, leaves, stems, and seeds of the cannabis plant. The cannabis plant contains more than 100 …
Marijuana | History, Effects, THC, & Legality | Britannica
Dec 25, 2025 · Marijuana is a drug composed of the leaves and flowers of plants in the genus Cannabis. Documented as far back as 2700 BCE in China, marijuana has long been considered valuable as an …
Marijuana Legality by State 2025 | Where Is Weed Legal? | DISA
Dec 1, 2025 · See where marijuana is legal in 2025. Interactive map shows state-by-state weed laws, medical and recreational use, and answers “can I smoke weed in…?”
Marijuana - Mayo Clinic
Aug 15, 2025 · Find out why cannabis, also called weed or marijuana, is used and the possible risks.
Marijuana (Cannabis, Weed): What It Is, Side Effects & Risks
Marijuana is a mind-alerting substance that comes from the Cannabis sativa plant. It has several short-term and long-term effects, many of which scientists are still studying.
Marijuana and CBD Risks and Resources | SAMHSA
Dec 3, 2025 · Marijuana use comes with risks to health. Today’s marijuana is stronger than ever before. States that have legalized marijuana regulate the drug in widely different ways ― and often it’s not …
Cannabis: Uses (Medical), Effects & Warnings - Drugs.com
Cannabis contains the chemical compound THC (delta-9 tetrahydrocannabinol), which is believed to be responsible for most of the characteristic psychoactive effects of cannabis that leads to the "high" …
Cannabis (Marijuana) and Cannabinoids: What You Need To Know
The word “marijuana” refers to parts of or products from the plant Cannabis sativa that contain substantial amounts of tetrahydrocannabinol (THC). THC is the substance that’s primarily …