Cannabidiol (CBD) oils are equally or less effective at inhibiting the growth of certain cancer cells compared to pure CBD, according to researchers. The results of their recent study indicate that future research into the clinical applications of cannabinoids should include an analysis of whether the pure cannabinoid compound or intact plant material is more effective at achieving the therapeutic effect.

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

In a study using genetically modified mice, researchers found that the nucleus accumbens recruited by cocaine use are largely distinct from nucleus accumbens recruited by sucrose, or table sugar. Because they are separate, this poses the possibility that drug use can be addressed without affecting biologically adaptive seeking of reward.

Taking steroid inhalers or tablets to treat asthma or control flare-ups is linked to a heightened risk of brittle bones (osteoporosis) and increased vulnerability to broken bones (fragility fractures), finds new research.

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, users with OCD reported it reduced their compulsions by 60%, intrusions, or unwanted thoughts, by 49% and anxiety by 52%. The study also found that higher doses and cannabis with higher concentrations of CBD were associated with larger reductions in compulsions.

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

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 research.

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 cannabis and opioid use among adults who used non-medical opioids. The findings showed that opioid use was at least as prevalent on days when cannabis was used as on days when it was not. The study is among the first to test opioid substitution directly.

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 anxiety and depression.

Endocannabinoids, signaling molecules produced in the body that share features with chemicals found in marijuana, can shut down genes needed for some pathogenic intestinal bacteria to colonize, multiply, and cause disease, new research shows.

Cannabinoids, a class of prescription pills that contain synthetically-made chemicals found in marijuana, are associated with a 64 per cent increase in death among older adults with chronic obstructive pulmonary disease (COPD), according to the first published data on the impact of cannabinoids on the respiratory health of individuals with the lung disease.

Everyone's heard of THC and CBD. But many other active compounds in cannabis interact to influence its effects. A new study confirms that those compounds are seldom tested for, and strain name is not indicative of potency or chemical makeup. Machine learning techniques could help fill the knowledge gap.

Long after a COVID-19 vaccination is developed and years after the coronavirus death toll is tallied, the impact on mental health will linger, continuing to inflict damage if not addressed, according to new research.

Cocaine addiction is a chronic disorder with a high rate of relapse for which no effective treatment is currently available. Scientists recently demonstrated that two gene mutations involved in the conformation of nicotinic receptors in the brain appear to play a role in various aspects of cocaine addiction.

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 research.

Children who take oral steroids to treat asthma or autoimmune diseases have an increased risk of diabetes, high blood pressure, and blood clots, according to new researchers. The study is the first to quantify these complications of oral steroids in a nationwide population of children.

A recent study found that people with substance use disorders (SUDs) are more susceptible to COVID-19 and its complications. The findings suggest that health care providers should closely monitor patients with SUDs and develop action plans to help shield them from infection and severe outcomes.

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 studies by finding that moderate adolescent cannabis use may have adverse effects that cannot be explained by the genetic or environmental factors that siblings may have in common.

Researchers are examining the beneficial effects of cortisone in order to lay the groundwork for the development of similar drugs with fewer side effects.

A new study published reveals that three-quarters of participants in an inpatient addiction intervention program came into the hospital using more than one substance. The findings suggests that a singular focus on opioids may do more harm than good if doctors overlook the complexity of each individual's actual substance use.