Science Category
More women using cannabis daily before and during pregnancy, research finds
The number of women using cannabis in the year before they get pregnant and early in their pregnancies is increasing, and their frequency of use…
Legalized recreational marijuana a substitute for alcohol, but not tobacco
The recent wave of recreational cannabis legalization across the US could generate $22 billion in sales per year, but not everyone is happy about it.…
Marijuana use may not make parents more 'chill'
Sorry, marijuana moms and dads: Using pot may not make you a more relaxed parent, at least when it comes to how you discipline your…
Cannabis treatment counters addiction: First study of its kind
An Australian study has demonstrated that cannabis-based medication helps tackle dependency on cannabis, one of the most widely used drugs globally. A new article provides…
Could marijuana be an effective pain alternative to prescription medications?
A new study has shown how cannabis could be an effective treatment option for both pain relief and insomnia, for those looking to avoid prescription…
Early-and-regular cannabis use by youth is associated with alteration in brain circuits that support cognitive control
The development of neural circuits in youth, at a particularly important time in their lives, can be heavily influenced by external factors — specifically the…
Marijuana use increases, shifts away from illegal market
A new article reports that, based on analysis of public wastewater samples in at least one Western Washington population center, cannabis use both increased and…
Gene linked to cannabis abuse
New research shows that a specific gene is associated with an increased risk of cannabis abuse. The gene is the source of a so-called nicotine…
Formation of habitual use drives cannabis addiction
A shift from brain systems controlling reward-driven use to habit-driven use differentiates heavy cannabis users who are addicted to the drug from users who aren’t,…
Medical marijuana does not reduce opioid deaths
Legalizing medical marijuana does not reduce the rate of fatal opioid overdoses, according to researchers.
Cannabis use among older adults rising rapidly
Cannabis use among older adults is growing faster than any other age group but many report barriers to getting medical marijuana, a lack of communication…
Genetic analysis of cannabis is here
Research could provide government regulators with powerful new tools for addressing a bevy of commercial claims and other concerns as non-medical marijuana, hemp and CBD…
Vaping is linked to adolescents' propensity for crime, study shows
A new study explores emerging drug use in the form of adolescent vaping and its association with delinquency among 8th and 10th grade students.
Synthetic version of CBD treats seizures in rats
A synthetic, non-intoxicating analogue of cannabidiol (CBD) is effective in treating seizures in rats, according to research by chemists. The synthetic CBD alternative is easier…
Growing up high: Neurobiological consequences of adolescent cannabis use
About one in five Canadian adolescents uses cannabis. Neuroscientists have been researching the effects of cannabis on the adolescent brain. Adolescence is associated with the…
CBD clinical trial results on seizure frequency in dogs 'encouraging'
Scientists have found in a small study that 89 percent of dogs who received CBD in the clinical trial had a reduction in the frequency…
Legal marijuana reduces chronic pain, but increases injuries and car accidents
The legalization of recreational marijuana is associated with an increase in its abuse, injury due to overdoses, and car accidents, but does not significantly change…
Health professionals wary of medicinal cannabis misuse and adverse effects
An analysis of published studies gauging attitudes to medicinal cannabis has found that while health professionals are broadly supportive, they feel they lack clinical and…
Cannabis-based medicine may reduce seizures for children with difficult-to-treat epilepsy
Taking a pharmaceutical formulation of cannabidiol, a cannabis-based medicine, cut seizures nearly in half for children with a rare and severe type of epilepsy called…
The new 'runner's high'? Some often mix weed, workouts
A study of cannabis users in states where it’s legal found 82% use the drug before and/or after exercise, with many reporting it increases enjoyment,…
Insight into the proteins in the brain that detect cannabis
Researchers have made new progress in understanding how cannabinoid receptors (CB1Rs), the proteins that detect the active components of marijuana, are controlled in the brain.
One in 7 Washington State drivers with children in the car recently used marijuana
According to a roadside survey conducted in Washington State, 14.1% of drivers with children in the car — nearly one in seven — tested positive…
Insights on marijuana and opioid use in people with cancer
A new study reveals that many people with cancer use marijuana, and rates of use in the US have increased over time. The study also…
Marijuana users weigh less, defying the munchies
New evidence suggests that those who smoke cannabis, or marijuana, weigh less compared to adults who don’t. The findings are contrary to the belief that…
Regular cannabis users require up to 220% higher dosage for sedation in medical procedures
Researchers in Colorado examined medical records of 250 patients who received endoscopic procedures after 2012, when the state legalized recreational cannabis. They found patients who…
Combining opioids and marijuana may be advantageous for pain sufferers
Researchers report combining cannabinoids with morphine did not significantly increase impulsivity or memory impairment in a study conducted in rhesus monkeys. The findings suggest using…
Marijuana for morning sickness? It's not great for baby's brain
With a growing number of states legalizing recreational or medical marijuana, more women are using the drug during pregnancy, in part due to its reported…
Fresh guidance to fill 'information vacuum' on new cannabis products for medicinal use
A clinical review offers new advice to help patients and doctors.
Severe psychological distress and daily cannabis use: Implications for mental health?
Daily cannabis use increased significantly from 2008 to 2016 among those with and without past-month serious psychological distress (SPD) and use among those with SPD…
Cannabis during pregnancy bumps psychosis risk in offspring
Pregnant women who use cannabis may slightly increase the risk their unborn child will develop psychosis later in life, suggests new research.
Patients with or without cancer use different forms of marijuana, study finds
A new study shows that compared to other patients, cancer patients use different forms of medical marijuana for unique reasons.
Surge in cannabis use among youth preceded legalization in Canada
National discussions on cannabis legalization, along with increased access to medical marijuana, may have encouraged more high school students to consume the drug years before…
Medical marijuana laws linked to health and labor supply benefits in older adults
A study that examined older Americans’ well-being before and after medical marijuana laws were passed in their state found reductions in reported pain and increased…
Most teens report using marijuana less often after legalization
Only one group of teenagers used marijuana more often after retail sales were legalized in Washington than they did before — high school seniors who…
Junk food purchases increase after recreational marijuana legalization
New research found a link between state recreational marijuana legalization and increased consumption of certain high-calorie foods.
Could medical marijuana help older people with their ailments?
Medical marijuana may bring relief to older people who have symptoms like pain, sleep disorders or anxiety due to chronic conditions including amyotrophic lateral sclerosis,…
Yeast produce low-cost, high-quality cannabinoids
Synthetic biologists have created an enzymatic network in yeast that turns sugar into cannabinoids, including tetrahydrocannabinol and cannabidiol, but also novel cannabinoids not found in…
THC found more important for therapeutic effects in cannabis than originally thought
Researchers recently solved a major gap in scientific literature by using mobile software technology to measure the real-time effects of actual cannabis-based products used by…
A 'joint' problem: Investigating marijuana and tobacco co-use
A survey of marijuana and tobacco co-users investigators found that co-users with high degree of interrelatedness between their use of the two substances had greater…
Parents: Keep medical marijuana dispensaries away from kids
Seven in 10 parents think they should have a say in whether dispensaries are located near their child’s school or daycare and most say they…