Cannabis

The three main species typically recognized within the Cannabis sativa L. family include Cannabis sativa, Cannabis indica and Cannabis ruderalis. The most well-known compounds found within the cannabis plant are THC, cannabidiol (CBD) and cannabinol (CBN).

CBD Oil: Health Benefits and Risks

There is a growing interest in CBD as a potential drug in the treatment of a wide spectrum of neurologic and neuropsychiatric disorders. However, caution must be taken.

The Potential Advantages of Patient-Directed Cannabis Therapy

Using a Portable Raman Spectrometer for Detection of THC

Hemp Seed Oil Health Benefits

Does CBD Oil Work for Arthritis Pain?

Can Cannabis Use Alter Sperm DNA?

Cannabis and Psychosis

Cannabis Use and Acute Myocardial Infarctions in Young People

Does Smoking Cannabis Indoors Affect Children's Health?

Health Effects of Eating Cannabis (Marijuana)

Synthesizing Cannabis from Yeast

Latest Cannabis News and Research

Teenage risk-taking linked to lower baseline dopamine levels

Teenage risk-taking, such as experimentation with alcohol, cannabis, nicotine and other substances, may reflect a compensatory response to lower baseline dopamine, the brain chemical for reward activity, suggests a new University of Pittsburgh School of Medicine study, published today in Nature Communications.

11 Jun 2026

More daily steps translate to improved mental health and better sleep among college students

University students who aren't always enthused about walking across campus for class can take heart in new research that suggests lots of daily steps translates to improved mental health and better sleep.

9 Jun 2026

Collective trauma reminders trigger immediate cravings for tobacco and cannabis

When national tragedy strikes, the urge to light up isn't just a habit, it is a psychological defense mechanism.

4 Jun 2026

Americans view ultraprocessed foods as addictive and harmful

Across partisan lines, Americans broadly believe ultraprocessed foods are addictive and harmful – expressing attitudes strikingly like those that spurred regulation of the tobacco industry, new Cornell University-led research finds.

3 Jun 2026

Cannabis and tobacco co-use lowers cognitive performance in at-risk youth

New research shows that among people at clinical high risk for psychosis, cannabis and tobacco co-use was associated with lower cognitive performance compared to healthy controls.

2 Jun 2026

Research challenges long standing beliefs about cannabis and male hormones

The effects of cannabis on the hormonal system and male fertility remain controversial within the scientific community. A study conducted by the University of Geneva (UNIGE), in collaboration with the Swiss Center for Applied Human Toxicology (SCAHT), provides a new answer by showing that cannabis use does not reduce testosterone levels in young men and may even increase its testicular synthesis.

28 May 2026

Treatment delays rising among teens with cannabis use disorder

Teens may turn to marijuana use for many reasons: curiosity, stress relief, peer pressure, help with mental health, or for the positive feelings of being "high." However, there is a difference between casual use and reliance on cannabis to function.

18 May 2026

Study identifies genetic pathways linking cannabis use and psychosis

New research from the Institute of Psychiatry, Psychology & Neuroscience (IoPPN) at King's College London has highlighted the distinct and shared molecular pathways linking cannabis use disorder (CUD) and psychosis, offering the potential for identifying those at risk, as well as targeted interventions for cannabis related psychosis.

13 May 2026

Teen smoking risks vary between disadvantaged rural and urban communities

Teens in disadvantaged neighborhoods are more likely to smoke, but it depends on whether they live in rural or urban areas.

13 May 2026

Cannabis and tobacco co-use may increase psychosis risk

A new multisite study published in Nature Mental Health found that using cannabis and tobacco together increases the risk of developing psychotic disorders like schizophrenia among those considered high risk.

12 May 2026

Why older adults are turning to edible cannabis for sleep, pain, and mood

Older adults in Colorado were drawn to edible cannabis mainly to manage sleep problems, pain, anxiety, or depression, often after concerns about conventional medicines or limited relief from other treatments. Most participants preferred THC-CBD combination products, but they remained uncertain about dosing, impairment, effectiveness, and how to choose the right cannabinoid ratio.

12 May 2026

Cannabis compounds may improve metabolism and reduce diabetes risk

A University of California, Riverside preclinical study is shedding light on a long-observed but poorly understood phenomenon: chronic cannabis users tend to have lower body weight and a reduced risk of developing type 2 diabetes, despite the drug's well-known tendency to increase appetite.

11 May 2026

Older adults increasingly use cannabis for pain and sleep relief

For adults over 60, cannabis use is increasing faster than in any other demographic.

8 May 2026

Adolescents view cannabis as safer than alcohol, vaping and cigarettes

Adolescents in California consistently perceive cannabis as less harmful than other commonly used substances, according to a new study analyzing data from two large statewide school surveys.

6 May 2026

Cannabis leads microdosing trends among U.S. adults, study finds

Researchers from University of California San Diego have found that microdosing - taking very small amounts of psychoactive substances - is more common among U.S. adults than previously recognized, with cannabis leading by a wide margin.

4 May 2026

Combining cannabis edibles and alcohol significantly increases driving impairment

In a study supported by the National Institute on Drug Abuse of the National Institutes of Health, Johns Hopkins Medicine researchers added to evidence that using cannabis edibles and alcohol together worsens driving impairment compared with consuming either substance alone.

4 May 2026

Meth use accounts for nearly 1 in 6 heart attacks, California study shows

Methamphetamine (meth) use accounted for nearly 15% of heart attacks for a decade in a northern California study, published today in the Journal of the American Heart Association, an open access, peer-reviewed journal of the American Heart Association.

30 Apr 2026