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  1. 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 …

  2. What Is Cannabis? Facts About Its Components, Effects, and ...

    Jun 22, 2023 · Today, more and more people are using the term cannabis to refer to weed. Read on to learn what cannabis is, and find a quick overview of its uses, legality, side effects, and more.

  3. 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 …

  4. Marijuana (Cannabis, Weed): What It Is, Side Effects & Risks

    Nov 5, 2023 · 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.

  5. 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" …

  6. The Effects, Risks and Side Effects of Marijuana (Weed ...

    Sep 9, 2025 · About Marijuana Marijuana refers to the dried leaves, flowers, stems, and seeds from the Cannabis sativa or Cannabis indica plant. Marijuana is a psychoactive drug that contains close to …

  7. Cannabis: Overview, Uses, Side Effects, Precautions ... - WebMD

    There are over 100 cannabinoids in cannabis, but THC and CBD are the most well-studied. Cannabinoids are found in the highest levels in the leaves and flowers of the plant. Cannabis is …

  8. 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 …

  9. Therapeutic Use of Cannabis and Cannabinoids - JAMA Network

    Nov 26, 2025 · Evidence from randomized clinical trials does not support the use of cannabis or cannabinoids for most conditions for which it is promoted, such as acute pain and insomnia.

  10. Cannabis | Definition, Species, & Marijuana | Britannica

    Mar 17, 2026 · Cannabis, medicinal, recreational, and fiber plants belonging to the family Cannabaceae. The taxonomy of the genus is contentious. A canelike variety is used for the production of hemp …