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) |
24
Marijuana rivals mainstream drugs for HIV/AIDS symptoms
Those in the United States living with HIV/AIDS are more likely to use marijuana than those in Kenya, South Africa or Puerto Rica to alleviate their symptoms, according to a new study published in Clinical Nursing Research, publis ...
Medicine & Health / Medical research
May 29, 2009 |
5 / 5 (3) |
0
Developing Brains: Alcohol Worse than Marijuana
(PhysOrg.com) -- It appears that when it comes to teen brain development, parents should be more worried about alcohol abuse than marijuana abuse. Two recent studies have been published showing that alcohol ...
Mar 26, 2009 |
4.7 / 5 (48) |
14
The herbal remedy: Teens use cannabis for relief, not recreation
When legal therapies let them down, some teens turn to cannabis. A new study, published in BioMed Central's open access journal Substance Abuse, Treatment, Prevention and Policy suggests that around a third of teens who sm ...
Apr 22, 2009 |
4.9 / 5 (15) |
24
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) |
4
|
Early cannabis users three times more likely to have psychotic symptoms
Young adults who started using cannabis at an early age and used it for several years are at increased risk of being diagnosed with a form of psychosis, of hallucinating or having delusions, a study published Monday found.
Medicine & Health / Psychology & Psychiatry
Feb 27, 2010 |
2.1 / 5 (42) |
35
|
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) |
42
|
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
|
Feds to stop prosecuting medical marijuana users (Update)
(AP) -- Pot-smoking patients or their sanctioned suppliers should not be targeted for federal prosecution in states that allow medical marijuana, prosecutors were told Monday in a new policy memo issued by ...
Medicine & Health / Medications
Oct 19, 2009 |
4.7 / 5 (11) |
2
Growing evidence of marijuana smoke's potential dangers
In a finding that challenges the increasingly popular belief that smoking marijuana is less harmful to health than smoking tobacco, researchers in Canada are reporting that smoking marijuana, like smoking ...
Aug 05, 2009 |
2.5 / 5 (31) |
18
Pot shot: Scientists find cannabis trigger for forgetfulness
Researchers on Sunday said they had pinpointed the biochemical pathway by which cannabis causes memory loss in mice.
Medicine & Health / Neuroscience
Aug 02, 2009 |
4.9 / 5 (10) |
5
Active ingredients in marijuana found to spread and prolong pain
Imagine that you're working on your back porch, hammering in a nail. Suddenly you slip and hit your thumb instead — hard. The pain is incredibly intense, but it only lasts a moment. After a few seconds (and a few unprintable ...
Medicine & Health / Medical research
Aug 13, 2009 |
2.9 / 5 (25) |
24
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 |
not rated yet |
0
California sprouts marijuana 'green rush'
(AP) -- A drug deal plays out, California-style: A conservatively dressed courier drives a company-leased Smart Car to an apartment on a weekday afternoon. Erick Alvaro hands over a white paper bag to his ...
Jul 18, 2009 |
4.8 / 5 (21) |
25
Weeding out marijuana: Researchers close in on engineering recognizable, drug-free Cannabis plant
In a first step toward engineering a drug-free Cannabis plant for hemp fiber and oil, University of Minnesota researchers have identified genes producing tetrahydrocannabinol (THC), the psychoactive substance in marijuana. ...
Sep 15, 2009 |
4.2 / 5 (5) |
6
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.
