Articles tagged with Cannabis
Studies found that cannabis use is associated with smaller left amygdala and right ventral striatum volumes, but no causal link was established. An editorial warns of potential risks for individuals with a genetic predisposition to schizophrenia, particularly women.
A recent study at the Center for BrainHealth found that nicotine use alters the effects of marijuana on the brain. The researchers discovered an association between smaller hippocampal brain volume and increased memory performance in individuals who use both marijuana and tobacco compared to those who only use marijuana or tobacco excl...
A University of Pittsburgh analysis found that areas with a higher density of marijuana dispensaries experience a greater number of hospitalizations involving marijuana abuse and dependence. Hospitalizations with marijuana abuse or dependence codes increased from 17,469 in 2001 to 68,408 in 2012.
A study of 408 teenage males found that chronic marijuana use was not linked to later physical or mental health issues such as depression, psychotic symptoms or asthma. The researchers controlled for other factors that could have influenced the findings, including cigarette smoking and access to health insurance.
A University of Michigan study found that teens using marijuana for medical reasons are 10 times more likely to say they're addicted than those who use it illegally. The study highlights the need for improved medical marijuana policies to address teen addiction.
A recent study found that marijuana use among teens is increasing, particularly among black teens, while cigarette and alcohol use are decreasing. The study analyzed data from over 600,000 high school seniors between 1976 and 2013 and found a marked decline in cigarette use and an increase in marijuana use.
A University of Minnesota study identifies a single gene responsible for the difference in psychoactive content between hemp and marijuana. The discovery could strengthen hemp producers' arguments that their products should not be subject to the same narcotics laws as hemp's cannabinoid cousin.
A new study found that the administration of cannabidiol (CBD), a non-psychotropic component of cannabis, significantly enhances the healing process of bone fractures. The study, conducted on rats with mid-femoral fractures, showed that CBD markedly improves bone healing after just eight weeks.
Researchers have found a way to separate cannabis' medical benefits from its negative effects by blocking a specific pathway. This breakthrough could lead to safe cannabis-based therapies that preserve pain relief and memory function.
Researchers found that blocking a specific pathway involving cannabinoid and serotonin receptors can reduce detrimental cognitive effects while preserving pain relief. The breakthrough aims to create safe cannabis-based therapies without memory impairment or other adverse effects.
A recent study by University of Illinois economists found that marijuana users between 18-24 years old drastically reduced their marijuana use when they turned 21 and gained access to alcohol. The study suggests that alcohol may be substituting for marijuana, with women showing a greater decrease in marijuana use than men.
A new RAND Corporation study found that adolescents who saw medical marijuana ads were twice as likely to use the substance or report plans to use it in the future. The study suggests a need to revise prevention programming for youth as legalization and visibility surrounding marijuana change.
A new study by University of Montreal researchers found that long-term cannabis use is associated with weight gain, but this effect varies depending on factors such as gender and level of use. The study also showed that concomitant cigarette smoking can alter the relationship between cannabis use and weight gain.
A new NYU study reveals that using marijuana to alleviate boredom increases the risk of reporting powder cocaine or hallucinogen use, while 'experimentation' is associated with lower risk. Infrequent use does not increase risk, and most teens who use marijuana do not progress to using other drugs.
A new study conducted at the University of Iowa's National Advanced Driving Simulator found that drivers who use both alcohol and marijuana together weaved more on a virtual roadway than those using either substance independently. The study, which analyzed the effects of inhaled cannabis on driving performance, also found no double eff...
A study found that most edible cannabis products sold in dispensaries carried labels with inaccurate THC levels, posing a risk to patients. The researchers called for better regulation and oversight of marijuana edibles to prevent overdosing and ensure accurate labeling.
A review of 79 randomized trials involving 6,500 participants found moderate-quality evidence supporting the use of cannabinoids for chronic pain and lower-quality evidence for nausea and vomiting. However, the effectiveness of cannabis for other conditions remains unclear, with increased risk of adverse effects.
An analysis of edible medical marijuana products found that many had inaccurate labeling, with some containing lower amounts of THC and higher amounts of CBD. Regulation and quality assurance are needed to ensure accurate product labeling.
A Stanford University School of Medicine study found that teenagers are unclear about the risks of marijuana and e-cigarettes, receiving conflicting information from various sources. The study suggests that future messages should address the addictive potential, health risks, and presence of nicotine in these products.
A nationwide study reveals a significant rise in marijuana exposure among children under 5, with over 75% of cases involving ingestion. The study calls for states to include child safety measures in their laws when considering marijuana legalization.
Researchers at WSU Vancouver found that hunter-gatherer cannabis users had significantly lower rates of intestinal worm infection compared to non-users. The study suggests that the Aka people may be unconsciously using cannabis as a form of 'medical marijuana' to ward off parasites.
A study found that 67% of male Aka foragers in the Congo Basin used cannabis, protecting against parasitic worm infections, which are a major health problem in developing world populations. The researchers also suggest that tobacco use may have similar protective effects.
Researchers at the University of Montreal found that targeted interventions can prevent, reduce, or delay cannabis use amongst high-risk youth. The study showed a significant reduction in cannabis use rates among sensation-seekers, with a 75% decrease six months post-intervention.
A new RAND Corporation study reveals an association between teen sleep patterns and substance use, including alcohol and marijuana. Adolescents who sleep less or stay up later are more likely to have used these substances over the past month.
Researchers found no significant differences in co-occurring substance use between medical cannabis patients using prescription pain medication and those who did not. Medical cannabis may be a safer alternative for chronic pain management, but communication between doctor and patient is key.
Researchers found that a medical marijuana pill was safe and well-tolerated, but did not show significant improvement in behavioral symptoms of dementia. The study suggests further research is needed to test the effectiveness of higher doses.
Researchers found that nonsmokers who inhaled secondhand cannabis smoke under extreme conditions experienced mild effects, including memory and coordination problems. The study provides significant insights into the impact of secondhand cannabis smoke on individuals and has implications for workplace drug testing.
The Quebec Cannabis Registry allows physicians to better manage medical cannabis use and monitor patient safety. The database will compile clinical data from patients using medical marijuana, providing valuable insights into its efficacy and risks.
Researchers suggest four strategies to prevent marijuana use among minors: increasing prices through tax policy, regulating retail availability, preventing accidental ingestion by children, and restricting marketing. These measures can help minimize youth access to marijuana.
A new study reveals cannabis consumers have a less active hippocampus and are more susceptible to false memories. Chronic use of cannabis can accentuate age-related memory problems.
A new study finds that simultaneous marijuana and alcohol users have double the odds of drunk driving, social consequences, and harms to self compared to those who use either substance alone. The research also reveals that concurrent users tend to have heavier drinking patterns.
A new NYU study examines prevalence and correlates of hashish use among US high school seniors, finding that males are more likely to use the potent form. The study also found that frequency of marijuana use increases risk for recent hashish use, with students who feel 'hooked' on marijuana nearly doubling their odds
Research in The FASEB Journal suggests that fenofibrate may become a viable treatment option for relieving pain, stimulating appetite, reducing nausea, and preventing depression. The study found that fenofibrate activates cannabinoid receptors, which could lead to the development of new drugs targeting these receptors.
Scientists have found that marijuana potency has tripled in some strains since legalization, with some samples containing up to 30% THC. However, many products lack cannabidiol, a compound with potential medical benefits, and contain contaminants such as fungi and solvents.
A new study found that suspending students for marijuana use can lead to more pot use among their classmates, but counseling is a more effective means of combating marijuana use. Schools with suspension policies had a 1.6 times higher rate of marijuana use among students compared to those without such policies.
Heavy teen cannabis use linked to changes in hippocampus, poor memory for life events. Young adults who abused cannabis as teens performed 18% worse on long-term memory tests than those who never used the drug.
A new study found that only 57% of Washington parents knew the legal age for recreational marijuana use, while 49% knew how much marijuana can be legally possessed. The study also revealed that parents' conversations about marijuana laws with their children were infrequent.
Researchers discover cannabinoid CB2 agonist AM1710 suppresses chemotherapy-induced pain in mice without tolerance or withdrawal symptoms. The therapeutic effect of AM1710 is preserved even after repeated dosing and blocking CB1 receptors produces no signs of withdrawal.
A new NYU study found that males and black students are more likely to use synthetic marijuana, while frequent nightlife and other substance use increase the risk. The study also suggests that most non-marijuana users have never tried synthetic marijuana.
A 10-year decline in perception of marijuana risk is reported in a study by Columbia University's Mailman School of Public Health. Women over 50, non-white individuals, and those with lower incomes are more likely to perceive cannabis use as risky.
A new study reveals that nearly half of adolescents with excessive daytime sleepiness consistent with a diagnosis of narcolepsy test positive for marijuana, emphasizing the need for drug screening. The study's findings also suggest that marijuana use may be contributing to misdiagnoses of narcolepsy in teens.
Researchers at Yale University found that marijuana activates neurons in the brain that normally suppress appetite, leading to increased hunger. The study provides insights into why people often experience extreme hunger after using cannabis.
Researchers from North America and the UK explore the emerging science behind medical cannabis, citing studies that suggest THCV produces anti-schizophrenic effects. The symposium aims to advance understanding of cannabinoids' role in health and disease through research and education.
A systematic review found a significant link between cannabis use and the onset of mania symptoms in individuals with pre-existing bipolar disorder. Cannabis use was also shown to worsen mania symptoms in those without pre-existing bipolar disorder, highlighting a major clinical problem.
Despite growing interest, there is a lack of studies showing cannabis benefits in children with autism and ADHD. Regular marijuana use can have harmful effects on developing brains, increasing the risk of addiction and mental health problems.
A study found that recent marijuana use is associated with symptoms of airway inflammation, while moderate lifetime smoking has no significant impact on lung function. Researchers analyzed data from over 5,000 adults and discovered a link between marijuana use and respiratory symptoms.
Researchers analyzed over 7.6 million tweets about marijuana, finding that 77% were pro-pot, while only 5% were anti-marijuana. Pro-pot tweets often encouraged use and made claims about health benefits, reaching a large audience of young people at risk for substance abuse.
A recent study by Columbia University's Mailman School of Public Health found that half of young victims of fatal crashes in nine US states were under the influence of either alcohol or marijuana, or both. The study analyzed data from 1999 to 2011 and found that 50.3% of deceased tested positive for alcohol, marijuana, or both.
A study of 7,191 fatal accidents involving young drivers in the US found that half were under the influence of alcohol or marijuana. The researchers found no significant substitution effect between alcohol and marijuana use, suggesting increased availability may lead to concurrent use.
The 2014 Monitoring the Future survey shows declining rates of teen prescription opioid abuse, cigarette smoking, and certain illicit drug use. However, e-cigarette use among teens is high and concerns remain about its health effects.
A CAMH survey found that 2.2% of Ontario adults seriously contemplated suicide in the last year, with significant increases in self-rated poor mental health and cannabis use. The report also showed declining rates of non-medical prescription opioid use and a decrease in smoking prevalence.
A Vanderbilt University study suggests replenishing 2-AG levels in the brain could alleviate mood and anxiety disorders. By restoring normal levels of 2-AG, researchers may have found a potential therapeutic strategy for treating depression and anxiety.
Preliminary research suggests that secondhand marijuana smoke can damage blood vessels as much as tobacco smoke, raising concerns about its impact on cardiovascular health. The study found that blood vessel function dropped by 70% after exposure to secondhand marijuana smoke.
Chronic marijuana users have smaller brain volume in the orbitofrontal cortex but increased brain connectivity. The study found that earlier onset of regular marijuana use induces greater structural and functional connectivity.
The study found that 33% of high school seniors support full legalization, while 28.5% believe it should be treated as a minor violation. High school seniors who identify as female, black or Hispanic, and reside in urban areas are more likely to favor liberal marijuana policies.
A UK study of over 2,000 children found that occasional cannabis use during adolescence has no impact on educational or intellectual performance. However, frequent use was linked to marginally worse exam results at age 16.
A major new review of cannabis research reveals adverse effects on mental and physical health, including increased risk of addiction, psychosis, and respiratory problems. Chronic cannabis use is linked to lower educational attainment and intellectual impairment, while adolescent use is associated with a doubling of schizophrenia risk.
A study published by LA BioMed researchers found that patients who tested positive for THC in their system had a lower mortality rate than those who didn't, with only 2.4% of THC-positive patients dying compared to 11.5% of THC-negative patients. The researchers suggest that THC may help protect the brain after traumatic injury.
New research suggests that early exposure to THC may cause long-term damage to the immune system, leading to increased risk of autoimmune diseases and chronic inflammatory conditions. Studies involving adolescent mice found that THC treatment resulted in severe alterations of immune responses in adulthood.
A study of frequent marijuana users found that negative emotions increased in the days leading up to use and didn't improve with cannabis. The research suggests that this can create a vicious cycle where people continue to use the drug despite feeling worse afterward.