Health

Most teens report using marijuana less often after legalization

Only one group of teenagers used marijuana more often after retail sales were legalized in Washington than they did before—high school seniors who work 11 or more hours per week, according to new research led by a WSU College ...

Health

The facts about driving after marijuana use

As the national debate on marijuana legalization continues, we asked Dr. Yifrah Kaminer, a professor of psychiatry and pediatrics in the Department of Psychiatry and Alcohol Research Center at UConn Health, to share his assessment ...

Health

New Mexico mulls state-run pot shops, subsidized medical use

New Mexico would become the first U.S. state to set up its own government-operated marijuana stores and subsidize medical cannabis for the poor under a bill brokered between Republicans and Democrats, as a new wave of states ...

Health

Thailand to start testing medical marijuana on patients

Thailand is poised to start its first tests of cannabis oil on patients, a health official said Friday, as excitement swirls around a new industry that could create money-making avenues for entrepreneurs while offering relief ...

Health

Liberal Hawaii decides again not to legalize marijuana

On the political spectrum, Hawaii is among the bluest of states. Democrats control all the levers of power at the state and federal levels, and voters back Democratic presidential candidates over Republicans by some of the ...

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Cannabis (drug)

C. sativa L. subsp. sativa C. sativa L. subsp. indica

Cannabis, also known as marijuana, marihuana, and ganja (from Sanskrit: गांजा gañjā, hemp)a[›], refers to any number of preparations of psychoactive drug from the Cannabis plant. The most common form is the natural herbal form.

The herbal form of the drug consists of mature female flowers and sub-tending leaves of pistillate (female) plants. The resinous form, known as hashish, consists primarily of glandular trichomes collected from the same plant material. The major psychoactive chemical compound in Cannabis is Δ9-tetrahydrocannabinol (delta-9-tetrahydrocannabinol), commonly referred to as THC. At least 66 other cannabinoids are present in Cannabis, such as cannabidiol (CBD) and cannabinol (CBN). Many of these cause some psychoactive interactions.

Marijuana is seen in strains of either pure breeds or intra-specific hybrids of Cannabis, typically of the subspecies indica or sativa. Strains are developed to highlight a specific combination of properties of the plant or to establish marketing differentiation.

The human consumption of Cannabis smoke is found as long ago as the 3rd millennium BC. In modern times, the drug has been used for recreational, religious or spiritual, and medicinal purposes. The United Nations estimates that about four percent of the world's adult population (162 million) use cannabis annually and about 0.6 percent (22.5 million) daily. The possession, use, or sale of psychoactive Cannabis products became illegal in most parts of the world in the early 20th century. Since then, some countries have intensified the enforcement of cannabis prohibition while others have reduced the priority of enforcement.

This text uses material from Wikipedia, licensed under CC BY-SA