News tagged with marijuana
Israelis develop 'cannabis without the high'
Israeli scientists have cultivated a cannabis plant that doesn't get people stoned in a development that may help those smoking marijuana for medical purposes, a newspaper said on Wednesday.
May 30, 2012 |
3.1 / 5 (8) |
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NY judge wants to hear victims in cyberbully case
(AP) -- A judge delayed the sentencing of an eyewear website operator who intimidated customers, saying he first wants to hear testimony from dozens of victims who reported they were threatened with violence, including murder ...
May 10, 2012 |
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How hemp got high: Canadian scientists map the cannabis genome
A team of Canadian researchers has sequenced the genome of Cannabis sativa, the plant that produces both industrial hemp and marijuana, and in the process revealed the genetic changes that led to the plant's drug-producing proper ...
Oct 19, 2011 |
5 / 5 (12) |
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New tests for 'legal marijuana,' 'bath salts' and other emerging designer drugs
Scientists today reported development of much needed new tests to help cope with a wave of deaths, emergency room visits and other problems from a new genre of designer drugs sold legally in stores and online ...
Chemistry / Analytical Chemistry
Aug 31, 2011 |
3 / 5 (2) |
4
GM marijuana problem growing in Colombia
Greenhouses lined with genetically modified marijuana sit on a mountainside just an hour ride from Cali, Colombia, where farmers say the enhanced plants are more powerful and profitable.
Jun 24, 2011 |
5 / 5 (3) |
2
Research discovers how marijuana affects the way the brain processes emotional information
Drugs like marijuana act on naturally occurring receptors in the brain called cannabinoid receptors. However, the mechanisms by which these drugs produce their sensory and mood altering effects within the brain are largely ...
Medicine & Health / Neuroscience
Apr 05, 2011 |
4.4 / 5 (7) |
2
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Marijuana use may hurt intellectual skills in MS patients
Any possible pain relief that marijuana has for people with multiple sclerosis (MS) may be outweighed by the drug's apparent negative effect on thinking skills, according to research published in the March 29, 2011, print ...
Medicine & Health / Neuroscience
Mar 28, 2011 |
1.8 / 5 (4) |
8
Pot docs face new rules in Colorado
(AP) -- Colorado's dispute over which doctors can recommend medical marijuana could become more confusing this week when state health authorities consider tighter limits at the same time lawmakers debate ...
Mar 14, 2011 |
5 / 5 (1) |
0
Teens prefer liquor to beer, hardly touch wine
Nearly half of American teen drinkers would rather have a shot of liquor than a bottle of beer, a new study finds. The golden brew and malt beverages only come a distant second and third, and wine barely registers ...
Mar 08, 2011 |
4 / 5 (2) |
1
Study shows exercise can curb marijuana use and cravings
(PhysOrg.com) -- Vanderbilt researchers are studying heavy users of marijuana to help understand what exercise does for the brain, contributing to a field of research that uses exercise as a modality for prevention and treatment.
Mar 04, 2011 |
2.3 / 5 (3) |
7
National anti-drug campaign succeeds in lowering marijuana use, study suggests
The federal anti-drug campaign "Above the Influence" appears to have effectively reduced marijuana use by teenagers, new research shows.
Feb 22, 2011 |
not rated yet |
1
Teen marijuana use up, alcohol use down
(AP) -- America's teens are using more marijuana and less alcohol, according to an annual government study of eighth-, 10th- and 12th-graders across the country.
Dec 14, 2010 |
5 / 5 (2) |
4
Marijuana use suppresses immune functions, study shows
(PhysOrg.com) -- Smoking marijuana can trigger a suppression of the body’s immune functions, making cannabis users more susceptible to certain types of cancers and infections, according to a new study led by a University ...
Medicine & Health / Medical research
Dec 03, 2010 |
1.9 / 5 (11) |
7
Colorado weighs difficulties of pot regulations
(AP) -- What's in that joint, and how can you be sure it's safe?
Nov 26, 2010 |
4 / 5 (3) |
8
New study reveals how cannabis suppresses immune functions
An international team of immunologists studying the effects of cannabis have discovered how smoking marijuana can trigger a suppression of the body's immune functions. The research, published in the European Journal of Im ...
Medicine & Health / Medical research
Nov 25, 2010 |
2.6 / 5 (35) |
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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.
For more information about Cannabis (drug), read the full article at
Wikipedia.
This text uses material from Wikipedia and is available under the GNU Free Documentation License.
