Marijuana News
October 9, 2026
Top Headlines
Oct. 6, 2026 Cannabinoids may intensify anxiety by removing a natural brake on specific neurons in the brain’s fear center, particularly during stressful situations. In mice, shutting down those neurons sharply reduced cannabinoid-related anxious ...
Sep. 30, 2026 A review of more than 265,000 people found that cannabis use was associated with higher rates of both committing violence and becoming a victim of it. The researchers say the link is significant but does not prove cannabis itself is the ...
Aug. 9, 2026 Frequent cannabis users may wake up with unusually high levels of the stress hormone cortisol, suggesting their daily stress rhythms could be disrupted. Researchers say the finding raises questions ...
Aug. 7, 2026 Teens who start using cannabis may experience slower growth in memory, attention, language, and processing speed. Their abilities often developed normally at first, then began leveling off while nonusers continued improving. THC appeared to be the ...
Aug. 5, 2026 A prescription form of THC helped many people with PTSD escape recurring trauma-related nightmares, with more than one-third reporting that the nightmares disappeared completely after ten weeks. The ...
June 27, 2026 Teens who use cannabis may face a substantially greater risk of developing serious mental health conditions, including psychotic and bipolar disorders, according to a study of more than 463,000 ...
May 15, 2026 Cannabis use among older adults is rising fast, but today’s marijuana is far more potent than many people realize — and experts warn the risks may be underestimated. Stanford Medicine specialists ...
Mar. 20, 2026 The largest review of medicinal cannabis to date found it doesn’t effectively treat anxiety, depression, or PTSD—despite millions using it for those reasons. Researchers warn it could even make mental health worse, raising risks like psychosis ...
Mar. 11, 2026 THC doesn’t just blur memories—it can create new ones that never happened. In a controlled experiment, cannabis users were much more likely to recall words that were never shown and struggled with tasks like remembering to do something later. ...
Jan. 19, 2026 Cannabis-based medicines have been widely promoted as a potential answer for people living with chronic nerve pain—but a major new review finds the evidence just isn’t there yet. After analyzing more than 20 clinical trials involving over 2,100 ...
Dec. 30, 2025 Cannabis products with higher THC levels may slightly reduce chronic pain, particularly nerve pain, according to a review of multiple clinical trials. The improvement was small and short-lived, while side effects were more common. Products with ...
Dec. 18, 2025 More than 20% of young adults say they use cannabis or alcohol to fall asleep, with cannabis leading by a wide margin. Researchers warn this strategy can backfire, disrupting sleep quality and increasing the risk of long-term sleep and substance-use ...
Latest Headlines
updated 8:00am EDT
Dec. 11, 2025 Rats with naturally high stress levels were far more likely to self-administer cannabis when given access. Behavioral testing showed that baseline stress hormones were the strongest predictor of ...
Nov. 18, 2025 Researchers developed a new nano-micelle formulation, CBD-IN, that finally gets CBD into the brain effectively. In mice, it relieved neuropathic pain quickly and didn’t cause the usual movement or ...
Nov. 15, 2025 Scientists found that people who use both cannabis and tobacco show a distinct brain pattern tied to mood and stress regulation. Their scans revealed ...
Oct. 20, 2025 A major collaboration between UC San Diego and 23andMe identified genes that shape cannabis use behaviors. The study linked the CADM2 and GRM3 genes to cannabis use and connected these patterns to ...
Sep. 2, 2025 A sweeping review of nearly 100 studies has raised concerns about the mental health impacts of high-potency cannabis products. Researchers found strong links to psychosis, schizophrenia, and cannabis ...
Aug. 28, 2025 Using cannabis to self-medicate comes with hidden dangers—new research shows these users face higher paranoia and consume more THC. Childhood trauma further amplifies the risks, especially ...
Aug. 12, 2025 THC levels in cannabis have soared in recent years, raising the risk of psychosis—especially in young, frequent users. Studies reveal a strong connection between cannabis-induced psychosis and ...
July 24, 2025 A massive global survey has revealed that people with eating disorders often turn to cannabis and psychedelics like magic mushrooms and LSD to ease ...
June 7, 2025 Cannabis use among older Americans has climbed dramatically, with 7% of adults 65 and older now reporting recent use. This rise isn't just in numbers but also in diversity older users today are more ...
June 3, 2025 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 a recent ...
Earlier Headlines
May 28, 2025 A new study finds that chronic cannabis use -- whether it's smoked or consumed in edible form -- is associated with significant cardiovascular ...
May 22, 2025 Researchers have identified a remarkably small but critical piece of genetic code that helps determine how brain cells connect, communicate, and function. The discovery not only deepens our ...
Cannabis Study: Legalization Reduces Problematic Consumption, Particularly Among Certain Individuals
May 7, 2025 Researchers are investigating how the legal supply of cannabis affects consumption and mental health among participants. In a first academic publication, the study team has now reported on the direct ...
Apr. 9, 2025 A new study found that people with cannabis use disorder (CUD) had elevated dopamine levels in a brain region associated with ...
Apr. 8, 2025 Scientists have helped identify a novel drug compound that selectively activates pain-altering receptors in the body, offering a potentially safer alternative to conventional pain ...
Apr. 2, 2025 Patients prescribed medicinal cannabis in Australia maintained improvements in overall health-related quality of life (HRQL), fatigue, and sleep disturbance across a one-year period, according to a ...
Mar. 21, 2025 A new study has analyzed and compared the fatty acids in the blood of individuals with schizophrenia, of those with cannabis use disorder and of those with both diagnoses, with the aim of shedding ...
Mar. 18, 2025 Marijuana is now legal in many places, but is it safe? Two new studies add to mounting evidence that people who use cannabis are more likely to suffer a heart attack than people who do not use the ...
Mar. 12, 2025 A recently completed study found that certain terpenes in Cannabis sativa are effective at relieving post-surgical and fibromyalgia pain in preclinical ...
Mar. 5, 2025 Researchers have developed a compound that relieves pain in mice but doesn't affect the brain, thereby avoiding mind-altering side effects and abuse potential. The custom-designed molecule, ...
Feb. 20, 2025 A new study analyzes the disease burden and the risk factors for severity among people who suffer from a condition called cannabinoid hyperemesis syndrome. Researchers say the condition occurs in ...
Jan. 28, 2025 Brain scans of more than 1,000 young adults suggest that heavy or recent cannabis use may dampen activity in brain regions involved in working memory. The effect was tied to poorer performance, ...
Jan. 23, 2025 Researchers analyzed cannabis smoking practices to assess whether in-home smoking was associated with cannabis detection in ...
Jan. 15, 2025 A cannabinoid-targeting drug restored memory performance in rats with early neurodegenerative damage while boosting acetylcholine, a key chemical involved in learning and memory. The findings point ...
Jan. 13, 2025 A new study found no changes in opioid outcomes among the general population with the states' passage of medical and recreational marijuana laws. However, the findings also show decreases in ...
Dec. 4, 2024 Teens who think their parents use cannabis are more likely to hold favorable attitudes toward the drug and to consider trying it themselves, according to a new study. The research also reveals that ...
Dec. 2, 2024 Increasing the levels of chemicals naturally produced in the body called endocannabinoids may thwart the highly addictive nature of opioids such as morphine and oxycodone while maintaining the ...
Nov. 15, 2024 A study found that people are less likely to consume cannabis if they had an upcoming activity, which is consistent with other studies, and would reduce use the most for job interviews and caring for ...
Nov. 14, 2024 Evidence has been growing to suggest that tetrahydrocannabinol (THC), the main psychoactive ingredient in cannabis, poses risks to the developing fetus by impacting brain development. Now a new ...
Nov. 11, 2024 Research shows that a non-hallucinogenic marijuana constituent increases both REM and non-REM sleep in rats. Human trials are now under ...
Wednesday, May 28, 2025
Thursday, May 22, 2025
Wednesday, May 7, 2025
- Cannabis Study: Legalization Reduces Problematic Consumption, Particularly Among Certain Individuals
Wednesday, April 9, 2025
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Friday, March 21, 2025
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Friday, November 15, 2024
Thursday, November 14, 2024
Monday, November 11, 2024
Wednesday, October 30, 2024
Monday, October 28, 2024
- Dramatic Drop in Marijuana Use Among U.S. Youth Over a Decade (2011 to 2021)
- Cannabis Use During Pregnancy Can Impact Thinking and Learning Skills, Increase Aggression Among Children, Study Shows
Wednesday, October 23, 2024
- Researchers Show Why Cannabis Policies Should Shift to a Harm Reduction, Health Promotion Approach to Safeguard Public Health
- Cannabis Use in Adolescence: Visible Effects on Brain Structure
Wednesday, October 16, 2024
Monday, October 7, 2024
Wednesday, October 2, 2024
- Chronic Pain Patients Are More Supportive of Cannabis Access Than Doctors
- Clinical Trial Shows Synthetic Cannabis Reduces Agitation in Alzheimer's Disease