Articles tagged with Cannabis
A new study based on extensive data from Swedish school surveys found that changes in average cannabis use among adolescents are reflected across the entire group. The distribution of cannabis use has remained highly stable over time, with increases or decreases occurring in parallel across all user groups.
Researchers have identified the specific smell receptor that causes mosquitoes to avoid borneol, a natural compound found in camphor tree oils. Activating this receptor triggers a neural pathway leading to avoidance behavior, offering potential strategies for designing more targeted and effective mosquito repellents.
A large new study published in JAMA Health Forum found that past-year cannabis use during adolescence is associated with a significantly higher risk of incident psychotic, bipolar, depressive, and anxiety disorders. Cannabis use preceded psychiatric diagnoses by an average of 1.7 to 2.3 years.
A cohort study found that adolescent cannabis use is associated with an increased risk of developing psychiatric disorders, particularly psychotic and bipolar conditions. The study's results inform the development of interventions and policies to prevent or delay adolescent cannabis use.
A study by Washington State University and the University of Calgary found that cannabis use increases appetite in humans and rodents alike, regardless of food consumption or body mass index. The researchers discovered that the brain's cannabinoid receptors play a key role in stimulating hunger, paving the way for future treatments.
A new study found that removing legal barriers to cannabis use may reduce daily opioid use and lower the risk of opioid-related overdoses among people who inject drugs. US states that legalized recreational cannabis saw a 9-to-11-percentage-point decline in daily opioid use among this population.
A new study led by Dr. Chu Chen suggests that combining THC with celecoxib may improve cognition and reduce Alzheimer's-related brain pathology in mice. The combination produced better outcomes than low-dose THC alone, including improved learning and memory performance and reduced markers of neuroinflammation.
A survey of 438 adults who used cannabis in the past year found that nearly 56% also drank alcoholic beverages, with users more likely to substitute cannabis for alcohol. Respondents reported consuming fewer alcoholic drinks and binge drinking less frequently after starting cannabis beverages.
A new study found that cannabis use was associated with lower blood pressure among street-identified Black Americans, but no alleviation of anxiety and depression. The research suggests potential benefits for cardiovascular health and highlights the need for violence-reduction programs to support these communities.
Researchers found viable spores of mycotoxigenic fungi, DNA fragments, and traces of toxins remained after gamma irradiation, highlighting the need for stricter testing and better safeguards in the cannabis industry. This is particularly concerning for immunocompromised individuals who may be at higher risk.
An updated Cochrane review of 21 clinical trials involving over 2,100 adults found no high-quality evidence that cannabis-based medicines reduce neuropathic pain more than placebo. Small improvements were reported by patients using products with both THC and CBD, but these changes were not clinically meaningful.
A new study found that varenicline, a medication used to quit smoking, can help men with cannabis use disorder reduce their cannabis use. However, the same treatment showed no significant effect on female participants. Women who received varenicline reported higher withdrawal and craving scores and lower medication adherence compared t...
New research suggests that mobile health interventions tailored to individual needs can reduce harms associated with heavy drinking and cannabis use. Studies demonstrate the effectiveness of personalized feedback and protective behavioral strategies in reducing substance use risks, paving the way for innovative digital interventions.
The funding will support research at UCLA's David Geffen School of Medicine, College of Letters and Science, and Fielding School of Public Health. The studies aim to inform evidence-based regulation and public health priorities.
A large national study found that even occasional cannabis use among teens can lead to worse school performance and emotional distress. The more frequently teens used cannabis, the greater the risk of these problems. Experts recommend frank conversations with teens about cannabis risks.
A systematic evidence review finds that cannabis products with higher levels of THC provide short-term pain relief, but at the cost of increased side effects. CBD-based products, on the other hand, show almost no benefit in reducing pain.
A systematic review found that cannabis products with higher THC concentration provide small improvements in pain and function, but at the cost of increased risks of common adverse events. CBD-only formulations showed no benefits. Long-term research is needed to guide patients and policymakers.
Research reveals cannabis use may promote deep, restorative sleep critical for physical restoration and immune function, but at the cost of reduced emotional regulation and memory integration. Chronic cannabis users experience diminishing benefits as use increases.
Lab studies found that a combination of THC and CBD kills ovarian cancer cells without harming healthy cells. The compounds may prevent metastasis and have minimal toxic effects, making them a promising alternative to current treatments.
A new clinical trial found that varenicline, a medication for quitting nicotine, was effective in vaping cessation regardless of cannabis use. Cannabis use did not appear to be a barrier to successful vaping cessation, and participants who used cannabis had similar odds of achieving abstinence as those who did not.
A new study by the University at Buffalo found that 12th graders who use two or more cannabis products are more likely to engage in binge drinking. The study suggests that certain modes of cannabis consumption, such as smoking and vaping, may be linked to higher risks of binge drinking.
A new study used deep learning and large-scale computer simulations to identify structural differences in synthetic cannabinoid molecules that cause them to bind to human brain receptors differently from classical cannabinoids. Researchers found that these substances often trigger the beta arrestin pathway, leading to more severe psych...
A new study suggests that prevention campaigns for cannabis-related vehicle crashes should target middle-aged and older adults, who are at risk of driving after using the drug. Adults over 50 who use cannabis daily or have mental health reasons are most likely to drive after using THC-containing products.
A cohort study found that participation in New York's medical cannabis program was associated with lower rates of opioid prescription during a 18-month follow-up. The study controlled for unregulated cannabis use, suggesting that medical cannabis may be an effective alternative to opioids for managing chronic pain.
A new study published in JAMA Internal Medicine found that adults with chronic pain who used medical cannabis had a 22% reduction in opioid use. The study, led by researchers at Albert Einstein College of Medicine, suggests that supervised use of medical cannabis can relieve chronic pain and reduce reliance on prescription opioids.
After cannabis sales became legal, rates of cannabis use and cannabis-related disorders increased significantly among adolescents aged 12 to 17 presenting for psychiatric emergencies. The study found a fourfold increase in cannabis use and a similar rise in cannabis-related disorders among this age group.
A comprehensive review of over 2,500 articles found limited support for medical cannabis in treating chronic pain, anxiety, and insomnia. However, pharmaceutical-grade cannabinoids have demonstrated effectiveness in specific conditions like HIV/AIDS-related appetite loss and severe pediatric seizure disorders.
The study highlights the need for clear guidance from clinicians to support safe cannabis or cannabinoid use. Clinicians should weigh benefits against risks when engaging patients in informed discussions about these therapeutic options.
A population-based study found that exposure to cannabis retail stores was associated with increased rates of harm, particularly in neighborhoods with higher store densities. The American College of Physicians recommends that managed care strategies prioritize improving health outcomes over cost control.
A recent USF study found that smoking cannabis and consuming omega-6 enriched processed foods compromises the immune system, leading to weakened heart function and increased inflammation. The combination can weaken the body's defense mechanism, making it harder for the heart to repair damage caused by inhaling cannabis.
Researchers developed a standardized language for describing cannabis and hemp aromas, which can aid in quality assessment beyond THC potency. The study found that hemp and cannabis exhibit overlapping sensory profiles, with distinct aroma characteristics emerging from each.
A new paper by University of Maryland School of Medicine researcher David Gorelick proposes six core competencies for medical students to know about cannabis before entering practice. The competencies address clinical utility, risks, legal landscape, and scientific evidence around medical cannabis.
Researchers have discovered a novel delivery method for CBD that effectively targets the brain's nerve cells, providing pain relief without adverse side effects. The study found that CBD-IN, a nano-micelle formulation of CBD, calms overactive nerve circuits in the areas responsible for sensing touch and pain.
A new study from Texas Biomedical Research Institute found that low-dose THC significantly reduced side effects and inflammation caused by HIV and antiretroviral therapy. The treatment also increased serotonin levels, lowered cholesterol and toxic bile acids, and improved cardiovascular health.
A statewide study of over 60,000 Oregon adults found that proximity to cannabis retailers is linked with increased cannabis use and decreased heavy drinking. Adults in two age groups, 21-24 and 65+, showed the most pronounced effects.
A new study found that adolescents who start using cannabis early are more likely to need healthcare for mental and physical problems as they enter adulthood. Those who began using cannabis before age 15 were more likely to seek care for depression, anxiety, suicidal thoughts, and physical health issues.
A US study found that teenagers who use cannabis are more likely to become regular tobacco users, with 32.7% of those aged 12-17 progressing to regular tobacco use four years later. The study estimates that around 13% of new regular tobacco use is attributable to cannabis.
A study published in Tobacco Control found that teenagers and young adults who use cannabis are more likely to become regular tobacco users, even if they haven't previously tried tobacco. The study estimated that 13% of new regular tobacco use is attributable to cannabis, with significant implications for tobacco control programs.
A new study by UC San Diego found that a third of Californians use cannabis regularly, yet there are significant gaps in knowledge about driving-related laws and regulations. The researchers emphasize the need for targeted education initiatives to address these knowledge gaps and promote safe driving practices.
Researchers found distinct brain changes in individuals using both cannabis and tobacco compared to those using only cannabis. This may explain increased depression and anxiety in dual users, as well as why quitting cannabis is harder for them.
A recent study found that cannabis may reduce opioid use among commercially insured patients with cancer diagnoses, indicating potential benefits for pain management. However, further research is needed to confirm the efficacy of cannabis as a treatment for cancer-related pain.
A team of UNLV researchers has engineered a new class of cannabidiol (CBD)-like medicines that show powerful seizure-reducing effects. The caraway-seed derived therapies offer a safer and more effective treatment for childhood seizure disorders than existing frontline therapies.
A large genetic study found associations between cannabis use and various traits, including psychiatric disorders, cognitive measures, and physical health problems. The study identified two genes, CADM2 and GRM3, linked to lifetime cannabis use and frequency of use.
The BGU-RADAR Center, in collaboration with leading US universities, has developed a consensus statement on essential knowledge and skills for integrating medical cannabis into clinical practice responsibly. The statement outlines key competencies for healthcare providers to counsel patients effectively on medical cannabis use.
Individuals with psychosis reported a large increase in current cannabis use following legalization, exceeding previous estimates for the general population. This finding highlights the need for policymakers to consider the potential health impacts of cannabis use on individuals with psychosis.
A six-year analysis of coroner records from Ohio reveals that over 40% of drivers who died in fatal crashes tested positive for active THC in their blood, with average levels exceeding most state impairment limits. The study found no change in THC positivity before or after the legalization of recreational cannabis.
Pediatric marijuana ingestions have increased by over 1,000% in the past seven years, primarily due to increased access to cannabis products during the COVID-19 pandemic. Children under 5 years old are most affected, with Black children and those from publicly insured households being disproportionately exposed.
A nationwide app called CHAMPS aims to support safer cannabis consumption among young adults who've experienced a psychotic episode. The pilot study found the app to be well-regarded and can be integrated into real clinical environments.
Researchers manipulated the endocannabinoid signaling system in prenatal mice, leading to altered gene expression, neural properties, and social interaction deficits. This work suggests that prenatal manipulation of this system may lead to neuropsychiatric conditions, particularly those involving social deficits.
A new study found that inhaling marijuana daily is associated with a 44% increased chance of developing asthma. Experts say people should avoid inhaling cannabis to reduce the risk of chronic lung disease. The study's authors emphasize the need for clearer messages about the risks of cannabis use.
A new survey found that the high cost of legal cannabis products is a significant barrier for many participants, while access to unbiased information helps people avoid illicit products. Understanding patients' difficulties in accessing safe products can guide strategies to make the process easier.
A new study analyzing real-world data from over 4 million adults found that cannabis users face almost four times the risk of developing type 2 diabetes within five years compared to non-users. The study suggests that long-term metabolic effects of cannabis use may be linked to insulin resistance and unhealthy dietary behaviors.
Researchers found no indication of reduced driving ability in frequent cannabis users who had abstained for at least two days. The study's findings suggest that relying on blood THC concentrations to assess impairment is not justified for regular cannabis users.
A 12-week high-intensity interval training intervention did not improve hippocampal integrity or cognitive/mental health impairments, but reduced cannabis craving. Regular physical exercise may be a potential strategy for managing cannabis use disorder.
A new longitudinal study by York University found that young adults using both substances in times of high stress and emotional distress reported more negative life consequences. The study suggests that understanding combined use can help young adults mitigate the risk and seek healthier coping mechanisms.
A study by University of California San Diego researchers found that delta-8 THC use is most common in states where marijuana is illegal, with 10.9% of adults reporting lifetime use. The study suggests that gaps in cannabis policy may be steering people towards less-regulated substances.
Insomnia patients taking cannabis-based medical products reported significant improvements in sleep quality, anxiety, and pain over 18 months. The study found sustained benefits with minimal side effects, suggesting potential for medical cannabis as an option for conventional treatments.
Research from King's College London and University of Bath found that people who self-medicate with cannabis for physical or mental discomfort are more likely to develop paranoia and anxiety. The study also discovered a link between childhood trauma and increased paranoia scores, which is exacerbated by cannabis use.
A systematic review found that high-concentration delta-9-tetrahydrocannabinol (THC) cannabis products are linked to unfavorable mental health outcomes, including psychosis and schizophrenia. The review of 99 studies suggests that higher THC concentrations increase the risk for adverse mental health effects.
Researchers at the University of Oklahoma are conducting a first-of-its-kind study to investigate the effect of cannabis use on facial wound healing in head and neck cancer patients. The study aims to determine whether cannabis smoking negatively affects wound healing, with potential implications for other types of surgery and conditions.