The pace of cannabis research in 2025 has been unprecedented. Through the end of August, scientists around the world have released hundreds of peer-reviewed studies exploring nearly every facet of the plant and its compounds.
This wave of research reflects both a growing acceptance of marijuana as a subject of serious academic inquiry and the urgent demand for better evidence on how it interacts with the human body and mind. It’s also a potential sign of things to come, with the growing interest among researchers expected to reach a fever pitch if President Trump finalizes the rescheduling of cannabis.
With that in mind, below is a list of over 250 cannabis-related studies, all published in 2025.
Cannabinoids Show Potent Anti-Biofilm Activity Against MRSA
Researchers discovered that several cannabinoids—including CBD and CBG—disrupted MRSA biofilms and significantly reduced bacterial viability, even against stubborn, drug-resistant strains. The cannabinoids also suppressed expression of key resistance genes, pointing to their potential as novel anti-biofilm therapies.
New Universal Genetic Marker Identified for Early Cannabis Sexing
Scientists have developed a reliable DNA marker applicable across diverse cannabis varieties, enabling sex determination in seedlings. This breakthrough offers a practical, accurate alternative to labor-intensive early flowering methods and promises major efficiencies for growers.
One in 12 U.S. Cancer Survivors Use Marijuana—Nearly Half for Medical Purposes
A national survey revealed that approximately 8% of cancer survivors currently use marijuana, with almost half doing so specifically for symptom relief—including pain, nausea, anxiety, and sleep—with many noting improvements.
No Significant Change in Car Accidents Following Cannabis Legalization in Connecticut
Analysis of crash data before and after marijuana legalization in Connecticut showed no meaningful increase in traffic accidents or fatal crashes, suggesting that legalization did not adversely impact road safety in that context.
CBDA Shows Far Greater Bioavailability Than CBD in Animal and Cell Models
In comparative pharmacokinetic studies, CBDA—cannabidiolic acid—demonstrated markedly higher absorption and stability than CBD across both animal models and cell cultures, positioning it as a potentially more efficient therapeutic cannabinoid.
THC-Rich Hydrogels Developed for Safe, Sustained Topical Delivery
Researchers developed polyvinyl alcohol (PVA) hydrogels infused with THC and either propylene glycol or vegetable glycerin to enhance skin delivery. These hydrogels maintained structural stability, supported skin cell growth, and released THC gradually over several days, offering a safe, controlled-release system potentially useful for treating localized inflammation.
Nanoparticle Delivery of CBD Shows Strong Tumor Inhibition in Triple-Negative Breast Cancer
Scientists developed folic acid–modified chitosan nanoparticles carrying CBD, which outperformed free CBD against triple-negative breast cancer cell models. The nanoparticles enhanced CBD absorption, increased reactive oxygen species, triggered cancer cell death, and achieved a remarkable 68% tumor reduction in animal models with minimal toxicity.
THC and CBD Create Distinct Brain Activity Patterns
Using neuroimaging in rats, researchers found THC increased overall brain connectivity and blood flow, while CBD decreased connectivity without affecting blood flow. When combined, they produced moderate, balanced effects—suggesting CBD may temper some of THC’s brain stimulation, a finding that could guide targeted cannabinoid therapies.
Vaporized Cannabis May Ease Naloxone-Induced Opioid Withdrawal Symptoms
In a proof-of-concept pilot with one participant, inhaled cannabis administered before naloxone reduced withdrawal severity (as measured by COWS scores) without increasing cardiovascular risk. These preliminary results hint at cannabinoids’ potential role in mitigating detox-related discomfort during opioid reversal.
CBD and Low-Dose Radiation Show Protective Effects Against Hepatic Encephalopathy
In a rat model of hepatic encephalopathy, combined treatment with CBD and low-dose radiation improved liver and brain outcomes by reducing oxidative stress, inflammation, and cognitive decline—outperforming either modality alone, and suggesting a synergistic therapeutic strategy.
Researchers Discover Cancer-Fighting Compounds in Hemp Roots
A study in the Journal of Cannabis Research uncovered previously overlooked compounds—specifically neolignans like dadahol A and B—in hemp roots that exhibit potent cytotoxic effects against pediatric cancer cell lines, particularly neuroblastoma. Dadahol A showed especially low inhibitory concentrations, highlighting hemp roots as a promising new source for anti-cancer drug discovery.
High-Dose Cannabis Use in Tourette Patient Did Not Impair Driving
A case study published in Frontiers in Psychiatry documented a 28-year-old man with Tourette syndrome and ADHD who used up to 10 grams of inhaled medical cannabis daily and was still deemed fit to drive according to German standards. Remarkably, driving ability remained intact even at high THC serum levels, accompanied by improved tics, attention, and sleep.
Researchers Discover Rare Flavoalkaloids in Cannabis Leaves
A chemical investigation revealed previously undocumented flavoalkaloid compounds in cannabis leaves, expanding the known chemical diversity of the plant and suggesting potential new bioactive targets for future therapeutic research.
Cannabigerol (CBG) Shown to Reduce Liver Fibrosis by Targeting Lipid Build-Up and Inflammation
This study demonstrated that CBG significantly reduces liver fibrosis in preclinical models by lowering fat accumulation and inflammatory markers in the liver, pointing to its promise as a candidate for treating metabolic liver disease.
Over Half of Dutch Brain Tumor Patients Have Used Cannabis—Many for Symptom Relief
A survey of Dutch patients with brain tumors found that more than 50% have used cannabis, primarily to ease symptoms like pain, insomnia, and anxiety—highlighting the role of cannabis as a commonly embraced complementary therapy in oncology.
Limited Evidence of Sex Differences in Short-Term Cognitive Effects of Cannabis
Researchers conducting controlled cognitive tests found minimal difference between men and women in short-term effects of cannabis on memory, attention, and processing speed—suggesting similar cognitive impacts across sexes under acute use.
Cannabidiol Boosts Antibiotic Effectiveness Against Extensively Drug-Resistant Acinetobacter baumannii
Preclinical results show that when combined with standard antibiotics, CBD enhances bacterial killing against highly resistant A. baumannii strains—offering a potential adjuvant strategy to bolster treatment efficacy in serious, drug-resistant infections.
CBD With L-Tryptophan and α-Casozepine Reduces Car Travel Stress in Dogs
In a blinded crossover trial involving 54 dogs, only the combination of 2 mg/kg CBD with L-tryptophan and α-casozepine significantly lowered cortisol levels following a stress-inducing car ride, suggesting this blend may help reduce acute travel-related stress, though results varied by breed and individual CBD absorption.
Cannabis Use Linked to Improved Orgasm Function in Women—Potential Treatment for Female Orgasmic Disorder
A systematic review of 16 studies covering nearly 8,850 women found strong evidence that cannabis improves orgasm frequency, ease, intensity, satisfaction, and overall sexual function. Benefits were more pronounced with frequent, low-to-moderate dosing before sexual activity, though occasional focus issues were noted.
Wearable Glove Produces CBD-Infused Microfibers for Wound Treatment
Engineers have created a wearable glove capable of spinning CBD-infused microfibers in situ, offering a mobile, flexible method for applying cannabinoid-based treatment directly to wounds. The innovation holds promise for more effective, localized healing applications, especially in field or resource-limited environments.
Most Cannabis Growers in Italy and the UK Also Garden Other Plants
A survey of 1,302 growers in Italy and the UK revealed that 82% cultivate cannabis alongside other plants. These “Generalist Gardeners” often started with food gardening before adding cannabis, suggesting broader cultivation habits and motivations beyond profit. The findings indicate that generalist cultivation patterns may reflect lower commercial intent and could shape more nuanced cannabis policy.
Inhalable CBD–Vancomycin Blend Rapidly Kills MRSA in Lab Tests With Sustained Effects
Researchers at the University of Sydney developed inhalable powder formulations combining CBD and vancomycin that eradicated clinical MRSA strains more effectively than either drug alone. The co-spray-dried blend achieved rapid, sustained bactericidal action over 24 hours, maintained stability post-processing, and featured particle sizes ideal for deep-lung delivery—suggesting a promising path for targeted MRSA respiratory therapeutics.
No Link Between Marijuana Use and Hypertension, Even After 35 Years of Follow-Up
This analysis of data from the CARDIA cohort followed over 4,300 adults for 35 years and found no statistically significant association between cumulative cannabis use and incidence of hypertension. Findings remained consistent across demographic and behavioral subgroups, suggesting typical levels of long-term cannabis use do not increase hypertension risk.
CBD May Reduce Social Withdrawal and Cocaine Vulnerability Caused by Stress
In a mouse model of chronic stress, CBD administered before stress exposures prevented social withdrawal and the increased vulnerability to cocaine’s rewarding effects. CBD also reversed stress-induced gene expression changes in serotonin signaling, endocannabinoid receptors, and stress response pathways—though anxiety-like behavior remained unaffected.
Cancer-Genetics Breakthrough: Four Distinct Cannabis Lineages, Early Sex Identification Tool
A comprehensive genetic survey of 83 cannabis genotypes identified four distinct lineages (not solely based on hemp vs. marijuana), revealing higher diversity in hemp and mixed hybrid groups. Researchers also validated a rapid, DNA-based technique using HRM to determine plant sex at seedling stage—a major efficiency boost for cultivation and breeding.
CBD Reduces Parkinson’s Treatment Side Effect Without Hindering Motor Benefits
Published in Neurotherapeutics, this study found that cannabidiol (CBD) protects brain cells in a Parkinson’s disease model by activating the Nrf2 antioxidant pathway, offering neuroprotection without interfering with motor benefits from standard treatments.
Enhanced CBD Formulations Deliver Up to 5–7 × Greater Absorption Compared to Standard Capsule
Published in Pharmaceutics, this study demonstrated that advanced CBD delivery systems—likely using nanoemulsions or liposomal carriers—achieve significantly enhanced bioavailability, improving absorption efficiency by five to seven times compared to typical oral capsules.
Hydrogel Combining CBD and FGF21 Promotes Spinal Cord Injury Repair Through Inflammation Modulation and Neural Recovery
Published in Advanced Functional Materials, researchers found that a hydrogel embedding both CBD and the neurotrophic factor FGF21 effectively promoted spinal cord repair in animal models. The formulation reduced inflammation, supported neural regeneration, and enhanced functional recovery.
Trichoderma hamatum Treatment Improves Drought Tolerance and Boosts Cannabinoid Production in Hemp
Published in Industrial Crops and Products, this study found that treating hemp plants with the beneficial fungus Trichoderma hamatum enhanced their resilience to drought stress and elevated cannabinoid levels—suggesting a promising agronomic strategy for sustainable, high-quality hemp cultivation.
Cannabidiol (CBD) Inhibits Metastasis in Pancreatic Cancer by Targeting MALAT1 and EMT Pathways
Published in IUBMB Life, this in vitro study by researchers at Kyung Hee University found that CBD suppresses metastatic behaviors in pancreatic ductal adenocarcinoma (PDAC) cell lines by downregulating the long non-coding RNA MALAT1 and reversing epithelial–mesenchymal transition (EMT). CBD reduced expression of invasion-related proteins (CXCR4, CXCR7, MMP-2, MMP-9), increased levels of epithelial markers (E-cadherin, Occludin), and decreased mesenchymal markers (Snail, Vimentin). When combined with low-dose gemcitabine, CBD demonstrated a synergistic suppression of these pathways without notable toxicity—highlighting its potential to enhance chemotherapy effectiveness at the molecular level.
Cannabis Use in Older Adults Linked to “Younger Brain” Network Patterns and Better Cognitive Performance
Analyzing data from over 25,000 UK Biobank participants, this study found that older cannabis users exhibited brain network activity reminiscent of younger individuals—particularly in subcortical–sensorimotor and subcortical–cerebellar connectivity—and also showed enhanced cognitive performance. While causality wasn’t established, findings suggest a possible neuroprotective role for cannabinoids and the endocannabinoid system in brain aging.
Cannabis Use Not Linked to Kidney Function Decline or Chronic Kidney Disease
Published in Clinical Nephrology, this study analyzed patient data and found that cannabis use does not accelerate kidney function decline or increase the risk of chronic kidney disease, suggesting that cannabis may be safer for renal health than previously assumed.
