Cannabis use is becoming increasingly common among older adults in the United States, but less is known about how often cannabis use may become problematic in this population. A new study from University of California San Diego School of Medicine finds that among the...
Here’s what to know about the latest research on cannabis and health risks. Read article
Cannabis marketers may be shaping how young adults think about sex and intimacy in ways alcohol advertisers have long been discouraged from doing, according to a new Washington State University study. Published in Communication Research, the study suggests that...
The legalization of cannabis affects substance use, with the potential for both negative and positive impacts on public health, a new McGill-led review study found. The global review found an increase in cannabis use and cannabis-related emergency department visits,...
Drivers who consume cannabis gummies are impaired for hours after taking the drugs, according to a new study published Monday. Researchers gave regular cannabis users either an edible or a placebo gummy, then had them operate a driving simulator. While the researchers...
A combination of THC and CBD eased symptoms in an especially frail population: patients with advanced dementia near the end of their lives. The preliminary results of the trial involving 120 patients with advanced dementia near the end of their lives, presented...
A new study has found that more American teenagers seeking treatment for cannabis use disorder, known as CUD, are facing longer wait times before receiving care. The study, published in the American Journal of Preventive Medicine, analyzed national data from more than...
This report presents educational information and insights for those who are evaluating Indiana's cannabis policies or considering potential alternatives. The authors' goal was not only to assess the cannabis policy landscape in Indiana but to highlight the areas of...
A long-term study of more than 11,000 children and teens has linked recreational cannabis use to slightly slower development of memory, attention, and thinking skills. This is the largest analysis of its kind conducted in the US. It's based on data from the Adolescent...
THC doesn’t just blur memories—it can create new ones that never happened. In a controlled experiment, cannabis users were much more likely to recall words that were never shown and struggled with tasks like remembering to do something later. Researchers found that...
A survey conveys clinicians’ experiences, concerns and their lack of training to adequately care for those who seek help. In a survey of nearly 400 Washington state clinicians, more than half expressed strong concern about the mental-health risks of cannabis use, and...
Along with chronic pain, mental health conditions are some of the top reasons people use marijuana for medical purposes. But a sweeping review of cannabis studies over the past 45 years in The Lancet Psychiatry concludes there is little to no high-quality evidence...
About one-third of patients in a Veteran Affairs (VA) Substance Use Disorder (SUD) treatment program reported using cannabis during SUD treatment, according to authors of research published in Harm Reduction Journal. Cannabis was used primarily targeting analgesia,...
The risks of developing psychiatric disorders are significantly increased among adolescents using cannabis, according to a recent study published in JAMA Health Forum. Adolescents aged 13 to 17 years who reported cannabis use had approximately 2-fold greater risks of...
Emergency department visits linked to cannabinoid hyperemesis syndrome (CHS) have increased nearly 29 percent over a five-year period in Virginia. According to the Virginia Hospital & Healthcare Association Data Analytics Teams, the annual adult emergency...
A small new Brazilian study published in the international Journal of Alzheimer's Disease investigated the effects of microdoses of cannabis extract on patients with mild Alzheimer's disease. The results found positive effects, without the associated "high" of...
A trial conducted at the Medical University of South Carolina tested men and women on whether varenicline could help with cannabis use disorder and the results showed that it helped men to reduce cannabis use, but not women. It also showed that the men in the study...
A systematic review of studies evaluating cannabis as a pain treatment concluded that some cannabis products do likely work to reduce chronic pain a little bit. The review, which was led by OHSU researchers and published in the Annals of Internal Medicine, analyzed...
Wayne State University is seeking veterans with post traumatic stress disorder to participate in a study testing the impacts of cannabis use to treat the disorder. During the clinical trials, veterans will participate in a 12-week treatment program testing varying...
A team of Brown University researchers conducted a study in which participants were given marijuana joints to smoke and then sent out to a controlled “bar lab”, in which they then were given the choice to have up to eight mini alcoholic beverages. The experiment was...
Cannabidiol (CBD) is one of over 100 compounds found in the cannabis plant. Past studies show that CBD may aid with inflammation within the body and also has antioxidant properties. A new study in mice found that CBD may also be used to treat neuroinflammation in...
"Anecdotally, [people] say cannabis works great," says Price, an assistant professor of neurological surgery at UC Davis. "It's the only thing that helps them sleep at night, the only thing that takes the edge off." This is why findings from a pair of major clinical...
New study findings show that over 40% of drivers who died in motor vehicle collisions tested positive for active delta-9-tetrahydrocannabinol (THC) in their system, with average blood levels far exceeding those considered to cause impairment. The research highlights a...
A Canadian study has shown that cannabis can have a negative impact on female fertility and the success of IVF treatments. But German experts say more research is needed on factors like age and consumption habits.
An experimental medication made from marijuana successfully reduced back pain in a new study, offering further support for the drug’s potential in treating one of the most common forms of chronic pain.
Researchers from University of California San Diego have found that Delta-8 tetrahydrocannabinol (delta-8 THC), a psychoactive compound often sold as a legal alternative to marijuana, is most commonly used in states where marijuana use remains illegal and delta-8 THC...
Recent studies have examined the relationship between the drug and psychoses and looked at how the brain responds to the substance. Key takeaways: Researchers found the contribution of cannabis use to schizophrenia nearly tripled in Ontario after the drug was...
In the first placebo-controlled trial of vaporized cannabis for acute migraine, patients experienced greater relief from pain and other symptoms than those receiving a placebo. During a migraine attack, participants who inhaled a combination of tetrahydrocannabinol...
More older people are using cannabis products regularly, but research suggests their cannabis-related health problems are also on the rise.
Scientists have discovered cannabidiol, a compound in cannabis known as CBD, in a common Brazilian plant, opening potential new avenues to produce the increasingly popular substance.
The Department of Cannabis Control (DCC) is soliciting proposals from public universities in California for research projects that study the implementation and effects of cannabis legalization. Through the Request for Proposal (RFP), DCC seeks to expand academic...
Researchers at the Center for Medicinal Cannabis Research at University of California San Diego School of Medicine have found that cannabidiol (CBD), a non-intoxicating compound found in cannabis, could help reduce problematic behaviors in autistic boys. The results...
The study, led by Leila Mohammadi at the University of California, San Francisco (UCSF) and published in the peer-reviewed medical journal JAMA, examined the potential connection between THC smoking and ingestion, and endothelial dysfunction—where the inner lining of...
The University of Mississippi will be home to a new center designed to help researchers nationwide address challenges that hamper research into therapeutic uses for cannabis. The Resource Center for Cannabis and Cannabinoid Research, R3CR, will comprise three...
New research from the Johns Hopkins University found the hemp-derived Delta-8 THC to be less potent than Delta-9 THC, the main psychoactive component in cannabis, when orally ingested, though the former can still produce similar psychoactive effects. Delta-8 resulted...
Many cannabis consumers said they believe consumption has little effect on driving and don't think they are too impaired to drive. These findings were reported in two new studies (here and here) released earlier this month by the AAA Foundation for Traffic Safety, a...
Oregon Health & Science University researchers have found that consuming cannabis while pregnant could affect fetal lung development and function, potentially leading to the development of chronic respiratory health conditions, such as asthma, in adolescence and...
A new study by researchers at Columbia University Mailman School of Public Health found no changes in opioid outcomes among the general population with the states’ passage of medical and recreational marijuana laws. However, the findings also show decreases in opioid...
As medicinal cannabis becomes more widely used, Rutgers Health is examining the potential physical and mental health effects on patients. After receiving a $686K grant from the National Institute on Drug Abuse, researchers recently kicked off a five-year study on...
Adults aged 18 to 49 years reporting medical-only or medical-nonmedical cannabis use may have a higher prevalence of cannabis use disorder (CUD) than those reporting nonmedical only, according to a research letter published online Jan. 22 in JAMA Psychiatry. Read the...
A reduction of in-home cannabis smoke could "substantially" reduce children's exposure to toxic and carcinogenic chemicals that are in smoke, according to a study titled "Exposure to secondhand cannabis smoke among children," published recently in JAMA Network Open....
After three years and lots of back-and-forth, the FDA finally greenlit the Multidisciplinary Association for Psychedelic Studies’ (MAPS) Phase 2 study of smoked cannabis in veterans for the treatment of PTSD (MJP2). This study will test the safety and efficacy of...
Law enforcement officials lack tools to detect cannabis-impaired driving as reliably as they can identify people who get behind the wheel drunk. Only a few states routinely test the blood of drivers involved in serious accidents for marijuana, and as a result, little...
This month, the F.D.A. surprised the researchers behind a proposed study to assess the safety and efficacy of using marijuana to treat military veterans with post-traumatic stress disorder, and other experts in the field, by authorizing the trial to proceed, according...
Illinois Gov. JB Pritzker, in a partnership with the University President Tim Killeen and Discovery Partners Institute, launched the Cannabis Research Institute on Nov. 15. The CRI, is a joint effort aimed at providing research and data to advance public knowledge on...
A series of new studies is putting a spotlight on the growing use of cannabis among people with cancer and some of the trend’s downstream effects. But research has lagged on whether and which cannabis products are a safe or effective way to help with cancer-related...
Many insomniacs swear by cannabis as a way to help them sleep – while many scientific studies have found that THC actually exacerbates sleep problems. A new study published last week in Addiction might explain why. Researchers from the University of Southern...
A recent study from the University of Georgia College of Public Health, published in The American Journal on Addictions, found that around 6% of pregnant women participating in the National Survey on Drug Use and Health reported using marijuana in the past month, with...
Gov. Tate Reeves signed Senate Bill 2888 on April 8, establishing the Mississippi Cannabis Research Program at the University of Mississippi. The new program will operate under the National Center for Cannabis Research and Education (NCCRE) at the School of Pharmacy....
As marijuana legalization has accelerated across the country, doctors are contending with the effects of an explosion in the use of the drug and its intensity. With more people consuming more potent cannabis more often, a growing number, mostly chronic users, are...
A lesser-known cannabinoid that is gaining in popularity Cannabigerol (CBG) effectively reduced anxiety in a clinical trial without the intoxication typically associated with whole plant cannabis. It may even have some memory enhancing effects, according to a new...
The Department of Health and Human Services has issued a long-awaited report on barriers to researching the medical use of marijuana. The report is required under the Medical Marijuana and Cannabidiol Research Expansion Act, which passed in 2022. Identified barriers...
Using marijuana daily for years may raise the overall risk of head and neck cancers three- to five-fold, according to a new study, published in JAMA Otolaryngology–Head & Neck Surgery, that analyzed millions of medical records. See the CNN article here.
The Cannabis Research Institute (CRI) has officially opened its doors in Chicago. Housed within the Discovery Partners Institute of the University of Illinois System, the CRI will focus on an array of studies ranging from medicinal benefits to agricultural practices...
When breastfeeding mothers in a recent study, published in the journal Breastfeeding Medicine, used cannabis, its psychoactive component THC showed up in the milk they produced. The Washington State University-led research also found that, unlike alcohol, when THC was...
The number of older adults hospitalized for cannabis poisoning tripled after Canada legalized the retail sale of marijuana, according to a study published Monday in the journal JAMA Internal Medicine, as the drug’s rapid legalization in North America leads to more...
Many health experts have worried that relaxing the laws around cannabis will lead to more use of the drug among minors. But Rebekah Levine Coley, a developmental psychologist at Boston College, is less certain. In April, she and colleagues published a study in JAMA...
For the first time, the number of Americans who use marijuana just about every day has surpassed the number who drink that often, a shift some 40 years in the making as recreational pot use became more mainstream and legal in nearly half of U.S. states. In 2022, an...
As the Biden administration moves to reclassify marijuana as a less dangerous drug, scientists say the change will lift some of the restrictions on studying the drug. But the change won't lift all restrictions, they say, neither will it decrease potential risks of the...
As more states pass laws legalizing marijuana for recreational use, Americans continue to favor legalization of both medical and recreational use of the drug. Nearly six-in-ten Americans (57%) who participated in a recent Pew Research Center survery said that...
Lawmakers have established the Mississippi Medical Cannabis Research Program by way of SB 2888. The program will be managed out of the National Center for Cannabis Research and Education at the University of Mississippi and will compile data on the effects of medical...
Vaporized cannabis containing THC and CBD may provide rapid and sustained relief of acute migraine pain with no serious side effects, new research suggests. In a single center randomized controlled trial across 247 treated migraine attacks, 4 puffs of vaporized...
When Michigan voters approved recreational marijuana six years ago, the measure included an innovative mandate: using cannabis tax revenue to pay for research into the health benefits of the drug for military veterans. State officials later committed $40 million. Not...
American teenagers are increasingly using a psychoactive substance called delta-8, sparking concerns the compound could pose a serious public health risk, a nation-wide study has found. As of last year, as many as 11.4 percent of US 12th graders used delta-8,...
Cannabis and/or cannabinoid access and use by adults with cancer has outpaced the science supporting their clinical use. A newly-released guideline from the American Society of Clinical Oncology (ASCO) provides strategies for open, nonjudgmental communication between...
Asthma is more common among high school students who use cannabis, relative to those who do not, and the prevalence of asthma increases with the frequency of its use among the students, according to a new study at Columbia University Mailman School of Public Health...
Patterns of cannabis use that lead patients to seek treatment in the emergency department (ED) may increase the risk of developing an anxiety disorder and worsen anxiety disorders in patients who already have them, according to new research. In a population-based...
Marijuana is neither as risky nor as prone to abuse as other tightly controlled substances and has potential medical benefits, and therefore should be removed from the nation’s most restrictive category of drugs, federal scientists have concluded. The recommendations...
A new study has found that there was no association between using cannabis and non-medical opioid use in people receiving pharmacotherapy for opioid use disorder. The findings neither confirm that using cannabis leads to opioid use nor that it's effective in reducing...
The University of Utah has marked the beginning of a new phase in the exploration of medical cannabis in Utah with the establishment of the Center for Medical Cannabis Research, which aims to support research to better understand the benefits and risks of the drug....
About a quarter of Americans have used emerging cannabinoids -- such as cannabidiol (CBD), cannabigerol (CBG), and cannabinol (CBN) -- in the past year, according to a cross-sectional survey. Among 1,169 participants who completed the poll, 25.2% reported past-year...
Marijuana is the most commonly used illicit substance in the United States, data from the National Survey on Drug Use and Health (NSDUH) show. The survey revealed that in 2022, cannabis increased in every age group — including those older than age 65. The annual NSDUH...
The University of Minnesota School of Public Health launched a new Cannabis Research Center on Thursday. The center will conduct research aimed at assessing the health impacts of the state’s recent legalization of recreational cannabis for adults, and help inform...
Research published this month in the Journal of Dental Research, scientists from Rutgers University and the University of Texas revealed that CBD, a cannabis compound, could offer a potent and safe alternative to opioids for managing acute dental pain. See the...
An analysis of the genomes of more than 1 million people, published Nov. 20 in the journal Nature Genetics, has shed light on the underlying biology of cannabis use disorder and its links to psychiatric disorders, abuse of other substances such as tobacco, and...
A University at Buffalo psychologist has received a $3.2 million grant from the National Cancer Institute to assess how cannabis use affects patients who receive immunotherapy. Thomas Jefferson University and Oregon Health and Science University will join UB in...
In this article, the authors present a breakdown of cannabis and cannabis-derived applications received by the FDA over the past 50 years. The authors also provide a summary of their experience and challenges in reviewing applications for research of cannabis and...
A new analysis led by a team of researchers at the University of Nebraska Medical Center has traced a new trend: More than one in five youths who reported vaping within the past month in a national survey in 2022 also vaped cannabidiol, or CBD, according to a report...
Many online marijuana dispensaries do not enforce age limits on purchases, and they have other lax policies that enable minors to buy cannabis on the internet, according to a new study published on Monday in The Journal of the American Medical Association Pediatrics. ...
A study presented at the 2023 annual meeting of the Menopause Society suggests that cannabis, or marijuana, may be increasingly popular for mitigating symptoms such as sleep difficulties and mood issues, despite a lack of research on the efficacy of marijuana for...
More than one-fifth of people who use cannabis struggle with dependency or problematic use, according to a study published on Tuesday in The Journal of the American Medical Association Network Open. The research found that 21 percent of people in the study had some...
State medical cannabis laws seem not to have contributed to population-level shifts in pain treatment for chronic noncancer pain in the US, researchers concluded in a new study published in Annals of Internal Medicine.
New research suggests that while some military veterans may turn to cannabis to relieve stress, frequent cannabis use may actually lead to more severe insomnia in the long run. The findings have been published in the Journal of Sleep Research. Read the article here.
The extent to which demographics of participants enrolled in cannabis clinical trials are representative of those who use cannabis is unknown. A new study published in Nature: Scientific Reports compared 2002 to 2021 data from the National Survey on Drug Use and...
The NFL and NFL Players Association are helping to fund a study on innovative pain management solutions. The league and union have jointly awarded two research funding grants totaling $526,525 to independent medical researchers at the American Society of Pain and...
Medical marijuana is touted as a pain reliever, but in U.S. states where it's legal, prescriptions for opioid or non-opioid painkillers haven't decreased, a new study finds. The study, published in the Annals of Internal Medicine, looked at the use of medical...
Clinical overuse of marijuana is linked to a variety of complications after major elective surgery, including blood clots, stroke, breathing difficulties, kidney issues and even death, a new study found. The study, published in the journal JAMA Surgery, analyzed data...
The National Institute on Drug Abuse (NIDA), which is part of the National Institutes of Health, has awarded Weill Cornell Medicine a five-year, $11.6 million grant for research on a link between cannabis and the brains of those living with HIV. The project is the...
A study published in the journal Psychological Medicine provides new evidence that problematic cannabis use may lead to schizophrenia, particularly for young men who are heavy users. The research, likely the largest epidemiological investigation conducted to date that...
The same factors driving many health care disparities in the U.S. are also affecting who has access to cannabis for managing symptoms related to cancer treatment, according to a new study led by a University at Buffalo researcher. The findings published in the journal...
Smoking cigarettes has long been linked to peripheral artery disease (PAD), a condition where the buildup of plaque narrows arteries and limits blood flow to the legs or arms. Now, a new study suggests that marijuana may have a similar impact, after finding that users...
The California Department of Cannabis Control (DCC) awarded $20 million in research grants to 16 academic institutions. The funds will support scientific research on the impact of cannabis on the mental health of young people, novel cannabinoids like Delta-8 and...
All patients undergoing procedures requiring anesthesia should be asked about cannabis use, according to guidelines released by the American Society of Regional Anesthesia and Pain Medicine (ASRA Pain Medicine). The first U.S. guidelines on cannabis use in relation to...
Raphael Mechoulam, a pioneering Israeli chemist who is credited with opening the field of cannabis science after identifying the structure and function of the key compounds of cannabis, died on March 9 at his home in Jerusalem. In his research at the Hebrew...
The American Journal of Public Health (AJPH), in collaboration with the Centers for Disease Control and Prevention (CDC), intends to publish a supplemental issue on emerging issues in cannabis surveillance and applied research. Research Articles and Brief Research...
Oxford scientists are to launch a major global trial to investigate whether cannabidiol (CBD) can treat people with psychosis or psychotic symptoms. The international study will involve 35 centres, mainly in Europe and North America. It will be coordinated by the...
Using marijuana every day can raise a person’s risk of coronary artery disease, or CAD, by a third compared with those who never partake, a new study found. Study results suggest that daily cannabis users were 34% more likely to be diagnosed with coronary artery...
"The number of seniors visiting emergency rooms in California for cannabis-related issues is growing, according to new research. From 2005 to 2019, the state’s emergency departments saw a 1,804 percent relative increase in the rate of cannabis-related trips among...
"THC-O acetate products have recently become popular due to claims that they produce stronger psychoactive effects than traditional marijuana and uncertainty about their legal status in the United States. However, a new study published in the Journal of Medical...
A new cannabis research center in Chicago will explore the effects of the plant and how best to manage the industry, officials announced Thursday. The Cannabis Research Institute is expected to do work on crop production, health benefits and risks, worker training...
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