Science Category

April 8th, 2021

Cannabis legalization and link to increase in fatal collisions

Legalization of recreational cannabis may be associated with an increase in fatal motor vehicle collisions based on data from the United States.

March 22nd, 2021

Heritable traits that appear in teen years raise risk for adult cannabis use

Study finds that a small portion of the risk for repeated cannabis use into adulthood can be attributed to the genetic effects of neuroticism, risk…

March 22nd, 2021

Medical cannabis can reduce essential tremor: Turns on overlooked cells in central nervous system

Medical cannabis can reduce essential tremor in mice. By injecting a specific synthetic cannabinoid into the spinal cord of mice suffering from essential tremor, researchers…

March 14th, 2021

Sharp reductions in costs of producing cannabis, fentanyl likely to spur widespread changes in use, dependence

A new analysis explores the effects of these changes on use. The analysis concludes that sharp declines in production costs for cannabis and opioids could…

February 1st, 2021

Frequent cannabis use by young people linked to decline in IQ

A study has found that adolescents who frequently use cannabis may experience a decline in Intelligence Quotient (IQ) over time. The findings of the research…

January 31st, 2021

Legal cannabis stores linked to fewer opioid deaths in the United States

Access to legal cannabis stores is associated with a reduction in opioid related deaths in the United States, particularly those linked to synthetic opioids such…

January 28th, 2021

The dangers of drugged driving are outpacing drunk driving

A recent study of drugged driving shows that a sizable percentage of individuals reported the use of marijuana and other illicit drugs while operating behind…

January 27th, 2021

Cannabis use both helps and hurts entrepreneurial creativity

When entrepreneurs dream up ideas for new businesses, cannabis use might help, and hinder, their creativity, according to a new study.

January 27th, 2021

Drink and drug risk is lower among optimistic pupils with 'happy' memories

Teenagers with happy childhood memories are likely to drink less, take fewer drugs and enjoy learning, according to new research.

January 11th, 2021

Marijuana use typically drops at the beginning of the year, then climbs in summer and fall

Marijuana use increases throughout the calendar year, with use up 13 percent on average at the end of each year compared to the beginning.

January 10th, 2021

More than half of people using cannabis for pain experience multiple withdrawal symptoms

More than half of people who use medical marijuana products to ease pain also experience clusters of multiple withdrawal symptoms when they’re between uses, a…

December 23rd, 2020

Cannabis use blunts stress reactivity in female rats

Female rats that inhaled vaporized cannabis daily for a month developed a blunted physiological response to stress, according to a new study. In contrast, male…

December 17th, 2020

Experimental vaccine can counter dangerous effects of synthetic cannabinoids

Made in clandestine laboratories and sold widely across the United States, the diverse class of drugs known as synthetic cannabinoids presents a growing public health…

November 16th, 2020

Cannabis strength soars over past half century

Largest study on how cannabis has changed over time finds increased strength putting consumers at greater risk of harm.

October 20th, 2020

Cannabis reduces OCD symptoms by half in the short-term

People with obsessive-compulsive disorder (OCD) report that the severity of symptoms was reduced by about half within four hours of smoking cannabis. After smoking cannabis,…

October 14th, 2020

Prenatal cannabis exposure linked to cognitive deficits, altered behavior

Regular cannabis exposure in rats during pregnancy may cause their offspring to have long-term cognitive deficiencies, asocial behavior, and anxiety later in adulthood.

October 12th, 2020

More young adults are abstaining from alcohol

Fewer college-age Americans drink alcohol, compared to nearly 20 years ago, according to a new study.

October 10th, 2020

Cannabis use appears to encourage, not replace, non-medical opioid use

Contrary to some claims, people in the US may not be substituting cannabis for opioids, New research examined the direction and strength of association between…

October 8th, 2020

Older adults using cannabis to treat common health conditions

Researchers report that older adults are increasingly using cannabis to treat a variety of common health conditions, including pain, sleep disturbances and psychiatric conditions like…

October 8th, 2020

Cannabis ads and store location influence youth marijuana use

States may want to consider the proximity of cannabis retailers and cannabis advertising to neighborhoods to prevent underage use of the drug, according to new…

September 22nd, 2020

It is time to embrace cannabis for medicinal use, say experts

Attitudes towards cannabis products for medicinal use need to change with much greater appropriate use of such products to help alleviate patients’ pain, suggests new…

September 12th, 2020

Study of siblings finds moderate cannabis use impacts cognitive functioning

A new study compares adolescent siblings to determine the impact of early and frequent use of marijuana on cognitive function. This study contrasts with previous…

September 10th, 2020

Pain tolerance among cannabis users

A recent study examining pain among cannabis users suggests that — unlike long-term opioid use — regular cannabis use does not appear to increase pain…

August 26th, 2020

Rates of e-cigarette and marijuana use not associated with vaping-related lung injuries, study finds

Higher rates of e-cigarette and marijuana use in U.S. states did not result in more e-cigarette or vaping-related lung injuries (known as EVALI), a new…

August 5th, 2020

Cannabinoids may affect activity of other pharmaceuticals

Cannabinoid-containing products may alter the effects of some prescription drugs, according to researchers. They published information that could help medical professionals make safe prescribing choices…

July 23rd, 2020

Legal marijuana may be slowing reductions in teen marijuana use

A longitudinal study of more than 230 teens and young adults in Washington state finds that teens may be more likely to use marijuana following…

July 3rd, 2020

Marijuana use while pregnant boosts risk of children's sleep problems

As many as 7% of moms-to-be use marijuana while pregnant, and that number is rising fast as more use it to quell morning sickness. But…

June 11th, 2020

Marijuana concentrates spike THC levels but don't boost impairment

A study of 121 regular users of legal market cannabis found that higher potency does not necessarily mean greater intoxication. It also found that while…

June 10th, 2020

Cannabis temporarily relieves PTSD symptoms, study suggests

People suffering from post-traumatic distress disorder report that cannabis reduces the severity of their symptoms by more than half, at least in the short term,…

May 29th, 2020

Users of high-potency cannabis four times more likely to report associated problems

Users of high-potency cannabis are four times more likely to report associated problems, and twice as likely to report anxiety disorder, than users of lower-potency…

May 21st, 2020

Legal cannabis hemp oil effectively treats chronic neuropathic pain

Researchers examine the effectiveness of consuming hemp oil extracted from the whole cannabis plant using a chronic neuropathic pain animal model. Researchers showed that legal…

May 16th, 2020

Minimum legal age for cannabis use should be 19, study suggests

The optimal minimum legal age for non-medical cannabis use is 19 years of age, according to a new study.

May 6th, 2020

Researchers develop chemistry needed to create marijuana breathalyzer

Chemists report the key chemical discovery necessary for the creation of a small, electronic marijuana breathalyzer.

April 24th, 2020

How much does it cost California cannabis growers to safety test?

The high cost of testing cannabis in California leads to higher prices for the consumer, which could drive consumers to unlicensed markets. A new study…

April 16th, 2020

Frequent cannabis users are way too high … in their estimates of cannabinoids

Researchers surveyed nearly 500 Hash Bash attendees, asking them to fill out a 24-item questionnaire. Participants were asked to fill in, in milligrams, the amounts…

April 9th, 2020

Whether marijuana helps with pain is unclear

Medical marijuana users who say they have high levels of pain are more likely than those with low pain to say they use cannabis three…

April 5th, 2020

Saliva test for cannabis could someday help identify impaired drivers

Those who consume alcohol and drive are often subjected to roadside stops, breathalyzer tests and stiff penalties if their blood alcohol content exceeds certain limits.…

April 3rd, 2020

Marijuana may impair female fertility

Female eggs exposed to THC, the psychoactive ingredient in marijuana, have an impaired ability to produce viable embryos, and are significantly less likely to result…

March 30th, 2020

New research sheds light on potentially negative effects of cannabis

Coughing fits, anxiety and paranoia are three of the most common adverse reactions to cannabis, according to a recent study.

March 27th, 2020

Legal marijuana products too strong for pain relief

More than 90% of the legal marijuana products offered in medical dispensaries are much stronger than what clinical studies have shown that doctors recommend for…