A wave of cannabis-related research published in 2026 has examined the plant’s potential impact on pain, cancer, neurological disorders, addiction, inflammation, sleep, public health and more. Some studies involve full-spectrum cannabis extracts, while others focus on isolated cannabinoids such as CBD, THC, CBG, CBC and THCV. The findings also cover the public policy implications of marijuana legalization, product safety, veterinary medicine, industrial hemp, emerging delivery systems and more.
That said, below is a list of 250 cannabis-related studies published so far in 2026, with each title linking to a full article (within each article is a link to the actual peer-reviewed study).
CBD and CBG May Help Protect Skin Cells From UVA-Related Damage
A study published in Antioxidants found that CBD and CBG may help protect skin cells from damage caused by UVA radiation. Researchers said the cannabinoids helped reduce oxidative stress, inflammatory signaling and related cellular damage in normal melanocytes and melanoma cells.
THC and CBD May Help Reduce HIV-Related Neuroinflammation
A study published in the Journal of Neuroimmune Pharmacology found that THC and CBD may help reduce inflammatory processes tied to HIV-associated neurocognitive disorders. Researchers from Michigan State University found both cannabinoids reduced several inflammatory mediators linked to neuroinflammation in a cell-based model.
Highly Purified CBD Shows Antipsychotic-Like Effects in Mice
A study published in the Journal of Psychopharmacology found that a highly purified form of CBD showed antipsychotic-like effects in mice. Researchers compared the treatment with newer non-dopamine-blocking psychosis medications, finding CBD produced effects in two standard preclinical models relevant to psychosis.
Recreational Marijuana Legalization Linked to Lower Personal Bankruptcy Rates
A study published in Finance Research Letters found that recreational marijuana legalization was associated with lower personal bankruptcy rates. Researchers analyzed data from all 50 states and Washington, D.C., from 2001 to 2024, finding legalization was linked to about 38 fewer bankruptcy filings per 100,000 residents each year.
Inhaled Medical Cannabis Linked to Five-Year Pain Relief and Major Opioid Reduction
A study published in Biomedicines found that inhaled medical cannabis was associated with sustained improvements in pain and function over five years among patients with treatment-resistant chronic low back pain. Researchers also found opioid use dropped from 100% of patients at baseline to 4.6% after five years.
CBD-Loaded Cellulose Aerogels Show Antibacterial Activity Against H. pylori
A study published in The Journal of Supercritical Fluids found that CBD-loaded cellulose aerogels showed antibacterial activity against Helicobacter pylori. Researchers said the biodegradable delivery system gradually released CBD under gastric-like conditions, suggesting potential for further study in stomach-related bacterial infections.
Low-THC, High-CBD Extract May Reduce Cocaine Relapse
A study published in Brain Sciences found that a low-THC, high-CBD cannabis extract reduced relapse-like behavior in mice by disrupting cocaine-associated memories. Researchers said the extract reduced both cocaine-primed and stress-induced reinstatement, while showing no reinforcing or aversive effects on its own.
Automated Method Detects Pesticides in Cannabis Flower
A study published in Analytica Chimica Acta found that an automated and miniaturized testing method can detect pesticide residues in cannabis flower while using far less material than conventional approaches. Researchers said the method improved recovery rates, reduced solvent use and offered a more sustainable option for cannabis testing laboratories.
Cannabis Terpenes Enhance THC’s Activation of Cannabinoid Receptors
A study published in Biochemical Pharmacology found that several cannabis terpenes enhanced THC’s activation of CB1 and CB2 receptors in a cell-based model. Researchers said some terpenes produced additive or synergistic effects, supporting further study of how cannabis compounds may work together.
Women of Childbearing Age View Marijuana as Relatively Safe During Pregnancy
A study published in the Journal of Cannabis Research found that many women of childbearing age view marijuana as relatively safe during pregnancy, especially for symptoms such as nausea, anxiety, sleep issues and pain. Among participants who had previously been pregnant, 25.9% reported using marijuana during pregnancy.
Cannabis-Based Products Linked to Significant Seizure Reduction in Refractory Epilepsy
A study published in Clinical Therapeutics found that cannabis-based products were associated with substantial seizure reductions among patients with refractory epilepsy treated through Brazil’s public health system. Overall, 70.3% of patients reported at least a 50% reduction in seizure frequency.
CBD-Loaded Cellulose Aerogels Show Antibacterial Activity Against H. pylori
A study published in The Journal of Supercritical Fluids found that CBD-loaded cellulose aerogels showed antibacterial activity against Helicobacter pylori. Researchers said the biodegradable delivery system gradually released CBD under gastric-like conditions, suggesting potential for further study in stomach-related bacterial infections.
THC Buccal Spray Shows Promise for Treatment-Resistant Chronic Pain
A study published in the European Journal of Pharmaceutics and Biopharmaceutics found that a THC-based buccal spray may help patients with treatment-resistant chronic pain. In a small observational study, mean pain scores fell from 8.6 to about 5.4, with 83% of patients reporting at least a 20% reduction in pain.
Inhaled Medical Cannabis Linked to Five-Year Pain Relief and Major Opioid Reduction
A study published in Biomedicines found that inhaled medical cannabis was associated with sustained improvements in pain and function over five years among patients with treatment-resistant chronic low back pain. Researchers also found opioid use dropped from 100% of patients at baseline to 4.6% after five years.
Highly Purified CBD Shows Antipsychotic-Like Effects in Mice
A study published in the Journal of Psychopharmacology found that a highly purified form of CBD showed antipsychotic-like effects in mice. Researchers compared the treatment with newer non-dopamine-blocking psychosis medications, finding CBD produced effects in two standard preclinical models relevant to psychosis.
CBD and CBG May Help Protect Skin Cells From UVA-Related Damage
A study published in Antioxidants found that CBD and CBG may help protect skin cells from damage caused by UVA radiation. Researchers said the cannabinoids helped reduce oxidative stress, inflammatory signaling and related cellular damage in normal melanocytes and melanoma cells.
CBD-Loaded Nanoparticles Improved Survival in Radiation-Damaged Mice
A study published in Materials Today Bio found that CBD-loaded nanoparticles showed radioprotective effects in mice exposed to gamma radiation. Researchers said the system released CBD after radiation exposure, reduced oxidative stress and increased the 30-day survival rate of irradiated mice to over 50%.
CBD and L-Theanine Combination May Improve Caffeine-Disrupted Sleep
A study published in Biomolecules & Therapeutics found that a combination of CBD and L-theanine improved sleep-related outcomes in mice with caffeine-induced sleep disruption. Researchers said the combination reduced the time it took mice to fall asleep, increased sleep duration and affected serotonin, melatonin and GABA levels.
High-Dose CBD Linked to Increased Testosterone in Men
A human study published in Medical Cannabis and Cannabinoids found that short-term, high-dose CBD use was associated with increased testosterone levels in men. Researchers said testosterone rose 1.44-fold compared to placebo, though levels remained within normal physiological ranges and the study involved just 12 healthy adults.
Cannabinoids and Melatonin May Help Cisplatin Fight Bone Cancer Cells
A study published in Naunyn-Schmiedeberg’s Archives of Pharmacology found that cannabinoids combined with melatonin and cisplatin enhanced anti-cancer effects against certain bone cancer cells. Researchers said several combinations showed synergy, allowing for lower cisplatin doses while increasing markers of cancer cell death.
CBD Reduced Brain Injury and Cognitive Deficits Following TBI
A study published in Cellular & Molecular Biology Letters found that CBD reduced brain injury and cognitive deficits caused by traumatic brain injury in cell and mouse models. Researchers said CBD appeared to reduce ferroptosis, a form of cell death tied to iron-dependent oxidative stress.
CBD May Reduce Neuropathic Pain by Targeting Brain Region Linked to Pain and Emotion
A study published in Psychopharmacology found that CBD reduced neuropathic pain, anxiety-like behavior and depression-like behavior in rats when administered into the anterior insular cortex. Researchers said CBD’s effects appeared to involve both CB1 and serotonin 5-HT1A receptors.
Medical Cannabis Products Linked to Improved Anxiety, Sleep and Quality of Life in Autistic Adults
A study published in Neuropsychopharmacology Reports found that cannabis-based medicinal products were associated with improvements in anxiety, sleep and quality of life among autistic adults. Researchers analyzed 130 patients in the UK Medical Cannabis Registry, with improvements reported over an 18-month period.
THC-CBD Treatment Reduced Restless Legs Syndrome Severity
A study published in the Journal of Neurology found that a treatment containing 2.7 mg of THC and 2.5 mg of CBD reduced restless legs syndrome severity. Researchers said improvements were seen after one and three months, with two-thirds of participants remaining on treatment after one year.
CBD Mouthwash May Help Control Dental Biofilm Without Damaging Enamel
A study published in Clinical Oral Investigations found that CBD-based mouthwash may help control dental biofilm without damaging enamel. Researchers said a 0.05% CBD formulation showed the strongest overall potential, with biofilm control similar to chlorhexidine while avoiding some enamel-related drawbacks.
CBD Shows Potential Against Non-Small Cell Lung Cancer
A preclinical study published in Phytomedicine found that CBD may have potential as an adjunct treatment for non-small cell lung cancer. Researchers found CBD reduced cancer cell viability, triggered cancer cell death pathways and enhanced the anti-cancer effects of paclitaxel in cell and mouse models.
Biostimulants May More Than Double Cannabis Flower Yield
A study published in Frontiers in Plant Science found that certain biostimulant blends may significantly increase cannabis flower yield. Researchers found one blend increased yield by 1.17-fold, while another more than doubled yield and also increased flower size and total terpene content.
CBD Shows Potential as Long-Lasting Local Anesthetic
A study published in Anesthesia & Analgesia suggests CBD may have potential as a long-lasting local anesthetic or as an add-on to existing anesthetics. Researchers found CBD inhibited sodium channels involved in pain signaling, with slow onset and offset kinetics that may be useful for longer-lasting regional anesthesia.
Oral CBD May Help Lower Blood Pressure
A systematic review published in the Journal of Cannabis Research found that oral CBD may help reduce blood pressure in adults, particularly during stress and sleep. The review included four randomized controlled trials involving 120 participants, with all four reporting reductions in systolic blood pressure compared to placebo.
CBG and CBC Induce Cell Death in Lung Cancer Cells
A study published in Antioxidants found that CBG and CBC induced cell death and apoptosis in two lung cancer cell lines. Researchers said the findings suggest the cannabinoids may warrant further study as potential add-on cancer therapies, though the results remain limited to cell models.
Medical Marijuana Laws Linked to Fewer Health-Related Workplace Absences
A study published in the Journal of Workplace Behavioral Health found that medical marijuana laws were associated with fewer health-related workplace absences. Researchers analyzed data from more than 20 million working adults, finding medical marijuana decriminalization reduced the likelihood of health-related absences by about 6.9%.
Full-Spectrum Cannabis Oil Reduced Anesthetic Needs in Dogs
A study published in Veterinary Research Communications found that full-spectrum cannabis oil containing CBD and THC reduced anesthetic requirements in dogs undergoing cancer-related surgery. Dogs given the oil required substantially less propofol and lower concentrations of sevoflurane, with no reported adverse events during treatment or the immediate post-anesthetic period.
Cannabis Use Linked to Reduced Opioid Use Among People Managing Withdrawal
A study published in the Journal of Cannabis Research found that people who used cannabis to manage opioid withdrawal were more likely to report reduced opioid use. The association was especially strong among participants with moderate to severe pain, who had more than six times higher odds of reporting reduced opioid use.
CBD-Rich Nanoemulsion Reduced Testicular and Hormonal Damage in Animal Model
A study published in Reproductive Toxicology found that a CBD-rich nanoemulsion reduced testicular and hormonal damage caused by prenatal valproic acid exposure in rats. Researchers said the treatment helped reverse morphometric, hormonal and oxidative changes, while also normalizing antioxidant enzyme activity.
Cannabis Oils Linked to Improved Quality of Life in Horse With Severe Chronic Disease
A case report published in Frontiers in Veterinary Science found that THC- and CBD-rich cannabis oils were associated with improved comfort, appetite, mobility and wound healing in a severely ill horse receiving palliative care. Researchers said the treatment was linked to improved quality of life over most of the 10-month treatment period.
Just 31% of Consumer CBD Products Meet Label-Accuracy Standard
A review published in Phytochemistry Letters found that just 31.3% of 937 consumer CBD products tested in peer-reviewed studies met a common label-accuracy standard. Researchers said the findings point to ongoing quality-control concerns, with some products also containing THC, synthetic cannabinoids, heavy metals, pesticides or residual solvents.
Medical Cannabis Linked to Improvements in Parkinson’s Patients
A study published in Cannabis and Cannabinoid Research found that medical marijuana use was associated with improvements in pain, sleep, quality of life and nighttime urinary frequency among patients with Parkinson’s disease. Researchers said the open-label findings are exploratory and that randomized trials are needed.
CBD May Help Address “Digital Era Fatigue”
A review published in CNS and Neurodegenerative Targets – Discovery On Target suggests CBD may have therapeutic potential for addressing “Digital Era Fatigue,” a condition tied to excessive screen time and social media use. Researchers said CBD may help regulate stress, mood, sleep and cognitive resilience, though direct clinical research remains limited.
Cannabis Root Nanoparticles Show Promise in Protecting Skin Cells From UVB Damage
A study published in the International Journal of Cosmetic Science found that nanoparticles derived from cannabis root cultures may help protect skin cells from UVB-related damage. Researchers found the particles improved cell viability, reduced oxidative stress and supported skin barrier-related genes in human keratinocyte cells.
Medical Cannabis Extracts Improved Cancer-Related Symptoms in About Half of Patients
A randomized, placebo-controlled, triple-blind clinical trial found that medical cannabis extracts provided meaningful relief for cancer-related symptoms in about half of patients. Researchers said improvements were most tied to sleep, anxiety and daytime tiredness, with no single extract clearly outperforming the others.
Cannabis Leaves Could Be Valuable Source of Antioxidant Compounds
A study published in Molecules found that cannabis leaves, often discarded as cultivation waste, could be a valuable source of antioxidant phenolic compounds. Researchers found that ultrasound-assisted extraction recovered high levels of phenolic compounds and flavonoids much faster than conventional maceration.
Hemp Seed Oil Nanoemulgel Shows Promise for Treating Psoriasis
A study published in the International Journal of Biological Macromolecules found that a hemp seed oil-based nanoemulgel significantly reduced inflammation in an animal model of psoriasis. Researchers said the formulation may help stabilize hemp seed oil delivery while preserving its functional properties.
CBD-Hesperetin Formulation Greatly Improves CBD Solubility
A study published in AAPS PharmSciTech found that a specialized CBD-hesperetin formulation dramatically improved CBD’s solubility, dissolution and in vitro permeability. Researchers said the hot-melt extrusion approach may offer a promising delivery platform for poorly soluble compounds such as CBD.
Cannabinoid-Based Therapies Linked to Reduced Agitation in Alzheimer’s Patients
A systematic review and meta-analysis published in The American Journal of Geriatric Psychiatry found that cannabinoid-based therapies were associated with reduced agitation and neuropsychiatric symptoms in Alzheimer’s patients. Researchers said drowsiness was the main safety concern, and larger randomized trials are needed.
Pediatric THC-Positive ER Drug Screens in Illinois Did Not Increase After Legalization
A study published in The Western Journal of Emergency Medicine found that recreational marijuana legalization in Illinois was not associated with a significant increase in pediatric emergency department patients testing positive for THC. Researchers reviewed pediatric urine drug screens before and after legalization, finding THC-positive screens rose only slightly from 18.18% in 2019 to 20.99% in 2020, a difference that was not statistically significant.
Robotic Testing Method Enables Rapid Screening of Pesticides in Cannabis Flower
A study published in Talanta found that a robotic testing platform paired with UHPLC-MS/MS can rapidly screen cannabis flower for pesticide residues using a smaller, more sustainable process. Researchers developed a method requiring just 30 mg of dried cannabis and 200 μL of acetonitrile, with a full analysis time of 25 minutes per sample.
Inhaled CBD Reversed Seizure and Inflammation-Related Effects of Chronic Nicotine Exposure
A study published in Experimental Lung Research found that inhaled CBD reversed several seizure-related and inflammatory effects linked to chronic nicotine pouch exposure in mice. Researchers found nicotine exposure worsened seizure severity and disrupted inflammatory markers, while inhaled CBD reduced seizure severity and helped normalize those effects.
Medical Cannabis Linked to Long-Term Improvements in Hypermobility-Related Chronic Pain
A study published in Clinical Rheumatology found that cannabis-based medicinal products were associated with sustained improvements in pain, anxiety and sleep among patients with hypermobility-associated chronic pain. Researchers analyzed 240 patients in the UK Medical Cannabis Registry, finding clinically significant improvements in pain severity and pain interference after 24 months.
Review Highlights Endocannabinoid System’s Role in Muscle Health and CBD’s Therapeutic Potential
A review published in Molecular Metabolism highlights the endocannabinoid system’s role in skeletal muscle health and CBD’s potential therapeutic relevance. Researchers examined how endocannabinoid signaling influences muscle development and function, noting its possible connection to conditions including obesity, type 2 diabetes, sarcopenia, cachexia and muscular dystrophies.
CBD Reduced Lung Injury by Targeting Inflammation, Oxidative Stress and Cell Death Pathways
A study published in the Iranian Journal of Basic Medical Sciences found that CBD helped protect against lung ischemia-reperfusion injury in rats. Researchers found CBD reduced markers of inflammation, apoptosis and necroptosis, while increasing antioxidant activity, suggesting potential therapeutic value for this type of lung injury.
Adolescent Delta-8 Use Remained Unchanged Even as Marijuana Use Fell
A study published in the American Journal of Preventive Medicine found that while marijuana use among U.S. 12th graders declined from 2023 to 2024, delta-8 THC use remained statistically unchanged. Researchers found past-year marijuana use fell from 30.4% to 25.5%, while delta-8 use remained around 12%.
