Cannabis: An In-Depth Report

Cannabis is a leafy plant which grows wild in many of the tropic and temperate areas of the world. It is cultivated both indoors and out for the production of its flowering tops. The most commonly used form of cannabis are the leaves and flowering tops (buds) which may be either smoked or eaten; It also comes in a more concentrated resinous form called hashish, and as a sticky black liquid called hash oil. There are three distinct species of cannabis: Cannabis sativa, Cannabis indica, and Cannabis ruderalis, though there is some argument as to whether these should be considered varieties rather than species. Most recreationally used cannabis is the result of interbreeding between these three types. The term ‘hemp’ is generally used to describe low-thc varieties of cannabis which are grown for industrial uses.

The active ingredients in cannabis are called cannabinoids. There are many cannabinoids synthesized by the plant including tetrahydrocannabinol, cannabinol, cannabidiol, cannabinolidic acid, cannabigerol, and cannabichromene. Delta-9-tetrahydrocannabinol is thought to be responsible for most of the psychoactive effects of cannabis and is the active ingredient in synthetic thc pills such as marinol.

The events surrounding the introduction of cannabis use to the New World are entirely unclear. Some historians say the Spaniards brought the plant with them in the 16th century; other say marijuana smoking came in with the slave trade or with the Asian Indian migration of the late 18th century.

The hemp plant was cultivated in the United States for centuries, apparently without general knowledge of its intoxicating properties. Cannabis was an often used medicine in the United States in the 19th century. It was easily available without a prescription and was also widely prescribed by physicians. Hemp was used by the pioneers to cover their wagons. The plant was a major crop in Kentucky, Virginia, Wisconsin and Indiana, and was one of the more important southern agricultural products, after cotton. It is still used to make rope, twine and textiles, while the seed is used as bird food.

Marijuana use as an intoxicant in the United States began slowly in the early part of this century. Puerto Rican soldiers, and then Americans who were stationed in the Panama Canal Zone, are reported to have been using it by 1916. American soldiers fighting Pancho Villa c. 1916 also learned to use it. This follows the first reported use in Mexico in the 1880’s. Intoxicant use in the United States is also traced to the large influx of Mexican laborers in the 1910’s and 1920’s.

Cannabis has been rejected in various societies on ascetic grounds. In such puritanical societies such as the Wahabil of Arabis and the Senussis of Libya, no smoking of any kind was tolerated, nor was coffee. In North Africa, social rank dictated use: the aristocratic Moors scorned both hemp and tobacco smoking, preferring instead, as compatible with high status, opium eating.

In the United States, the decade of the 1960’s has seen a spectacular and unprecedented spread of the use of marihuana, chiefly among the youth. An estimated 24 million persons have used marihuana and approximately 3.4 million are current users. The numbers involved and the fact that use spans all age groups and social classes in American life has produced marked public reaction and a need for more information on the drug.

When smoked, the effects of cannabis begin almost immediately. When eaten the effects can take 1 to 2 hours to manifest, based primarily on how much food is in the stomach. The effects of smoked cannabis peak after about 20 minutes and last for 1-2 hours. When eaten, the effects will peak more slowly and primary effects may last for 3-4 hours. The primary effects sought by those using cannabis recreationally are euphoria, relaxation, and changes in perception. Effects vary depending on dosage, with effects at low doses including a sense of well-being, mild enhancement of senses (smell, taste, hearing), subtle changes in thought and expression, talkativeness, giggling, increased appreciation of music, increased appetite, and mild closed-eye visuals. At higher doses, visuals may become more prominent, sense of time is altered, attention span and memory are frequently affected, and thought processes and mental perception may be significantly altered. While most people do not experience a strong visual component to the cannabis experience, some do and some particular varieties of cannabis as well as higher doses are more likely to produce this effect.

Both sales and possession of cannabis are illegal in the United States and most countries, however many states have legalized the medical use of cannabis. Additionally, some states have decriminalized the possession of personal use quantities (under 1/2 – 1 ounce) choosing to punish this with a fine rather than jail time.

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