Science Category

June 10th, 2019
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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…

June 10th, 2019
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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…

June 10th, 2019
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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…

June 10th, 2019
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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,…

June 9th, 2019
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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.

June 9th, 2019
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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…

June 9th, 2019
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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…

June 9th, 2019
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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…

June 9th, 2019
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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…

June 8th, 2019
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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…

June 8th, 2019
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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…

June 8th, 2019
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Fresh guidance to fill 'information vacuum' on new cannabis products for medicinal use

A clinical review offers new advice to help patients and doctors.

June 8th, 2019
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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…

June 8th, 2019
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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.

June 7th, 2019
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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.

June 7th, 2019
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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…

June 7th, 2019
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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…

March 18th, 2019
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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…

March 1st, 2019
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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.

March 1st, 2019
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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,…

February 28th, 2019
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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…

February 26th, 2019
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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…

February 22nd, 2019
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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…

February 19th, 2019
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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…

February 14th, 2019
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Cannabis use in teens linked to risk of depression in young adults

Cannabis is the most commonly used recreational drug by teenagers worldwide. In Canada, among youth aged 15 to 19 years, the rate of past-year cannabis…

February 11th, 2019
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Potent marijuana edibles can pose a major unrecognized risk to patients with cardiovascular disease

With widespread legalization and increasing use, more care, education a research needed about how each marijuana formulation may affect and sometimes compromise the cardiovascular system…

February 7th, 2019
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Traffic fatalities on a high after cannabis legalization

Legalizing the sale of cannabis for recreational use can lead to a short-term increase in traffic fatalities in legalizing states and their neighboring jurisdictions, new…

February 7th, 2019
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Parenting in the age of legal pot: Household rules, conversations help guide teen use

The legalization of marijuana in Washington state in 2012 gave parents the opportunity for a new teachable moment. Many say that as society has become…

February 5th, 2019
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What drives patients to use medical marijuana: Mostly chronic pain

A new study seeks to understand whether people are using medical cannabis for evidence-based reasons.

January 26th, 2019
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Cannabis use disorder: The policy climate matters

Adolescents and young adults living in states with more liberal policies reported higher average rates of past-year cannabis use than those in states with more…

January 22nd, 2019
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Some pregnant women don't believe cannabis is harmful to their fetus

Up to one-third of pregnant women do not believe cannabis is harmful to their fetus, according to a new review.

January 15th, 2019
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Teen brain volume changes with small amount of cannabis use, study finds

At a time when several states are moving to legalize recreational use of marijuana, new research shows that concerns about the drug’s impact on teens…

January 10th, 2019
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Worrisome statistics around medical cannabis users operating vehicles

More than half of people who take medical cannabis for chronic pain say they’ve driven under the influence of cannabis within two hours of using…

January 9th, 2019
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Exposure to cannabis and stress in adolescence can lead to anxiety disorders in adulthood

A new study conducted on laboratory animals shows that exposure to cannabis and stress during adolescence may lead to long-term anxiety disorders characterized by the…

January 2nd, 2019
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Increased risk of harm from cannabis across Europe

A significant new study shows that cannabis potency has doubled across Europe in the past 11 years.

December 19th, 2018
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Exposure to cannabis alters the genetic profile of sperm

New research suggests men in their child-bearing years should consider how THC could impact their sperm and possibly the children they conceive during periods when…

December 18th, 2018
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CBD in marijuana may worsen glaucoma, raise eye pressure

A study has found that CBD — a major chemical component in marijuana — appears to increase pressure inside the eye of mice, suggesting the…

December 17th, 2018
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How marijuana may damage teenage brains in study using genetically vulnerable mice

In a study of adolescent mice with a version of a gene linked to serious human mental illnesses, researchers say they have uncovered a possible…

December 14th, 2018
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Cannabis-based drug in combination with other anti-spasticity

Oral spray containing two compounds derived from the cannabis plant reduced spasticity compared with placebo in patients already taking anti-spasticity drugs.

December 6th, 2018
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Cannabis-based compound may reduce seizures in children with epilepsy

A recent analysis of published studies indicates that the use of cannabinoids for the treatment of epilepsy in children looks promising.