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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, …

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

    Marijuana (Cannabis, Weed) 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 …

  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 …

  4. Cannabis Facts and Stats | Cannabis and Public Health | CDC

    Mar 7, 2025 · Cannabis Facts and Stats At a glance A variety of information sources are available to monitor the prevalence and trends of cannabis use in the United States. The resources …

  5. The Effects, Risks and Side Effects of Marijuana (Weed, Cannabis, …

    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 …

  6. Marijuana | History, Effects, THC, & Legality | Britannica

    Oct 10, 2025 · What is marijuana? 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 …

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

    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 …

  8. Cannabis (drug) - Wikipedia

    Tetrahydrocannabinol (THC) is the main psychoactive component of cannabis, which is one of the 483 known compounds in the plant, including at least 65 other cannabinoids, such as …

  9. 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 …

  10. 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 …