Cannabis News and Research

Latest Cannabis News and Research

As cannabis users age, health risks appear to grow

Benjamin Han, a geriatrician and addiction medicine specialist at the University of California-San Diego, tells his students a cautionary tale about a 76-year-old patient who, like many older people, struggled with insomnia.

9 Jun 2025

Teens who smoke or vape are more likely to use cannabis, study finds

German adolescents who use cigarettes or e-cigarettes are at higher risk for cannabis use, underscoring the need for effective school-based prevention programs.

5 Jun 2025

Understanding barriers to treatment for cannabis use disorder in the United States

As cannabis becomes more potent and widely used in the United States – especially among young adults – concerns about cannabis use disorder are growing. More than 16 million Americans meet the criteria, yet most never receive treatment.

3 Jun 2025

Researchers show cannabis dependence drives links to psychiatric disorders

Research uncovers genetic connections between cannabis addiction and psychiatric disorders, urging a reevaluation of cannabis legalization and treatment.

2 Jun 2025

Cannabis use among older adults in the US reaches record levels

Marijuana use among older adults in the US has reached a new high, with 7 percent of adults aged 65 and over who report using it in the past month, according to an analysis led by researchers with the Center for Drug Use and HIV/HCV Research (CDUHR) at the NYU School of Global Public Health.

2 Jun 2025

Cannabis retailers found to be more concentrated in disadvantaged neighborhoods

A novel study reveals a significantly higher concentration of recreational (nonmedical) cannabis retailers in socioeconomically disadvantaged areas and neighborhoods with greater proportions of populations of color across 18 US states in which cannabis use is legal for adults.

2 Jun 2025

Airline pilots face high rates of anxiety and alcohol misuse, study finds

The mental health of airline pilots is at risk, with alarming rates of depression and alcohol misuse, necessitating urgent action for crew and passenger safety.

2 Jun 2025

Salk researchers create detailed genetic atlas of cannabis to date

Cannabis has been a globally important crop for millennia. While best known today as marijuana for its psychoactive cannabinoid THC (tetrahydrocannabinol), historically, cannabis has been a cornerstone of human civilization, providing seed oil, textiles, and food for more than 10,000 years.

29 May 2025

Chronic cannabis use linked to significant cardiovascular risks

A new study led by UC San Francisco researchers finds that chronic cannabis use - whether it's smoked or consumed in edible form - is associated with significant cardiovascular risks.

28 May 2025

Research reveals the impact of cannabis laws on traditional prescriptions

Approval of recreational and medical cannabis laws in most U.S. states has allowed individuals to legally obtain cannabis to treat certain medical ailments that had typically been treated with prescription drugs.

22 May 2025

Uniform vape designs could decrease appeal among young non-smokers

Standardizing the color and branding of disposable vaping devices may deter young people who have never smoked or vaped from trying them in the first place, suggests a comparative study, published online in the journal Tobacco Control.

21 May 2025

Study reveals high rates of cannabis use disorder in older US veterans

A large national study of U.S. veterans aged 65–84 found that 10.3% reported cannabis use in the past 30 days, with over one-third of these meeting criteria for cannabis use disorder. Frequent use and inhaled forms of cannabis sharply increased the risk.

19 May 2025

Study reveals how acetaminophen may actually relieve pain

A new study from Indiana University scientists may aid the pharmaceutical industry in better understanding a popular over-the-counter pain reliever: Tylenol.

16 May 2025

Study highlights the growing toll of parental substance use on American children

A large percentage of American children are growing up in households with at least one parent who uses alcohol or other drugs in problematic ways-raising the risk that those children will go on to do the same, a new study suggests.

13 May 2025

Mental health disorders tied to growing number of cannabis-related hospital visits

More people are landing in the hospital with cannabis-related problems-and for many, a mental health condition is the primary issue, according to a new study published in the Journal of Studies on Alcohol and Drugs.

7 May 2025

Rethinking the social side of problem drinking

When picturing a "typical" alcoholic, people tend to imagine a person drinking at home alone. But that focus overlooks the social origins of many serious alcohol problems, say the authors of a new review paper in the journal Current Directions in Psychological Science.

6 May 2025

Cannabis use during pregnancy linked to higher risk of infant complications

An updated systematic review finds that consuming cannabis while pregnant appears to increase the odds of preterm birth, low birth weight and infant death.

5 May 2025

New studies link increased heart disease risk to tobacco and cannabis use

New clinical results from multiple studies show coronary heart disease death associated with tobacco use is anticipated to rise up to 40% in the next five years and people with cannabis use disorder are 50% more likely to experience cardiogenic shock, acute myocardial infarction, and arrhythmias.

2 May 2025

High cannabis use associated with increased colon cancer mortality

Researchers at the University of California San Diego School of Medicine have found that individuals with colon cancer and a documented history of high cannabis use were more than 20 times more likely to die within five years of diagnosis compared to those without such a history.

28 Apr 2025

Cannabis use linked to increased dementia risk after emergency care

Individuals with an emergency department (ED) visit or hospitalization due to cannabis were at 23% and 72% greater risk of a new dementia diagnosis within five years compared to individuals with an ED visit or hospitalization for any other reason or the general population, according to a new study published in JAMA Neurology.

15 Apr 2025