Marijuana/Cannabis News and Research

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Marijuana is a green, brown, or gray mixture of dried, shredded leaves, stems, seeds, and flowers of the hemp plant (Cannabis sativa). Cannabis is a term that refers to marijuana and other drugs made from the same plant. Other forms of cannabis include sinsemilla, hashish, and hash oil. All forms of cannabis are mind-altering (psychoactive) drugs.

Schizophrenics appear to rely considerably less on top-down processing during perception

Patients with schizophrenia are able to correctly see through an illusion known as the 'hollow mask' illusion, probably because their brain disconnects 'what the eyes see' from what 'the brain thinks it is seeing', according to a joint UK and German study published in the journal NeuroImage.

6 Apr 2009

Partner behavior better predicts STD risks

Risky behaviors such as not using condoms or having sex with multiple people put young adults at risk for contracting sexually transmitted diseases, but perhaps not as much as the characteristics of their sexual partners, University of Florida researchers say.

6 Apr 2009

Figures on teenage drinking, smoking and drug use across Europe released

The latest findings on teenage drinking, smoking and drug use across Europe are released the 26th of March, 2009.

1 Apr 2009

Cannabinoids have anti-cancer effects

Guillermo Velasco and colleagues, at Complutense University, Spain, have provided evidence that suggests that cannabinoids such as the main active component of marijuana (THC) have anticancer effects on human brain cancer cells.

1 Apr 2009

Discovery of new molecular mechanism for the processing of endocannabinoids

Dale Deutsch, Ph.D., Professor of Biochemistry and Cell Biology at Stony Brook University and colleagues discovered a new molecular mechanism for the processing of endocannabinoids, brain compounds similar to THC, the active ingredient in marijuana, and essential in physiological processes such as pain, appetite, and memory.

24 Mar 2009

Severe vomiting case due to chronic marijuana use

This obscure clinical manifestation of severe vomiting sickness due to chronic abuse of marijuana, recognized by Dr. Sontineni and his colleagues at the Creighton University of Omaha, NE, was published on March 14, 2009 World Journal of Gastroenterology.

22 Mar 2009

Discovery of new mechanism for the processing of endocannabinoids

New research funded by the National Institute on Drug Abuse (NIDA), part of the National Institutes of Health, has identified a new mechanism for the processing of endocannabinoids, natural brain compounds similar to THC, the active ingredient in marijuana.

17 Mar 2009

Efforts needed to increase HIV/AIDS education, prevention, experts, advocates say at California conference

California public health officials and other experts on Wednesday called for new ways to better educate people about HIV/AIDS prevention, the Riverside Press-Enterprise reports.

16 Mar 2009

Study looks at driving under the influence of cannabis

Thrill-seeking young men are more likely to drive under the influence of cannabis (DUIC) and engage in reckless driving, according to a new University of Montreal study.

11 Mar 2009

A new method to detect presence of 23 illicit drugs

A team of scientists from the Institute of Legal Medicine at the University of Santiago de Compostela (USC) has developed a technique for detecting the presence of 23 illicit drugs and medicines in saliva samples.

11 Feb 2009

Genetic risk for substance use can be neutralized by good parenting

A genetic risk factor that increases the likelihood that youth will engage in substance use can be neutralized by high levels of involved and supportive parenting, according to a new University of Georgia study.

10 Feb 2009

Marijuana use may increase risk of testicular cancer

Frequent and/or long-term marijuana use may significantly increase a man's risk of developing the most aggressive type of testicular cancer, according to a study by researchers at Fred Hutchinson Cancer Research Center.

9 Feb 2009

Teens who frequently go out with friends more likely to use marijuana

Marijuana use appears to have decreased among most European and North American adolescents between 2002 and 2006, and those who went out with friends on fewer evenings of the week were less likely to report using the drug, according to a report in the February issue of Archives of Pediatrics & Adolescent Medicine.

2 Feb 2009

Heavy dope smoking can damage developing brain in teens, young adults

Adolescents and young adults who are heavy users of marijuana are more likely than non-users to have disrupted brain development, according to a new study.

2 Feb 2009

Study of cannabinoid medicine for pain found patients got 'high,' but effects not related to pain relief

Researchers at Brigham and Women's Hospital found that patients taking cannabinoid medicines for pain may be getting "high," but these effects were unrelated to relief from their pain symptoms. Results of their study, one of the first to examine the addictive potential of this class of pain medicine, were presented today at the American Academy of Pain Medicine's 25th Annual Meeting.

29 Jan 2009

Substance use common among patients with tuberculosis

About one in five U.S. tuberculosis patients reports abusing alcohol or using illicit drugs, and those who do appear more contagious and difficult to treat, according to a report in the January 26 issue of Archives of Internal Medicine.

27 Jan 2009

Pre-drinking - a new culture of intoxication

In a new report published online in the January issue of Addiction, researchers question whether current licensing policies have contributed to a rise in the phenomenon of "pre-drinking" amongst young people.

15 Dec 2008

Success of anti-meth ads questioned by study

An independent review investigating the effectiveness of a publicly funded graphic anti-methamphetamine advertising campaign has found that the campaign has been associated with many negative outcomes.

12 Dec 2008

Decline in teen marijuana use stalls - trends in cigarette and alcohol use continues to fall

There are signs that the ongoing decline in teen marijuana use in recent years has stalled; however the downward trend in cigarette and alcohol use continues, according to the 2008 Monitoring the Future (MTF) Survey. Results were announced today at a news conference.

11 Dec 2008

Program to deter youth alcohol use also reduces conduct problems, study finds

A University of Georgia program designed to reduce alcohol use, drug use and risky sexual behavior in African-American youth also reduces the likelihood of engaging in conduct problems by up to 74 percent two years later, according to a new study.

8 Dec 2008