All Articles
Browse every published article, from the latest research to earlier analysis. Use the page numbers below to explore the complete archive.
Can THC or CBD Thicken Whole Blood? What a 24-Donor Laboratory Experiment Measured
A 24-donor lab experiment found higher blood viscosity with added THC or CBD. Learn the exact results, null findings, and limits on clinical or DUI claims.
Can CBD Prevent Persistent THC Memory Deficits Despite Higher Plasma THC? A Mouse Study
A complete 2017 mouse study found concurrent CBD attenuated selected THC-related memory and behavioral deficits despite approximately 30% higher measured plasma THC. What it proves—and cannot prove—for forensic impairment.
Can THC Reduce Arthritis-Cell Inflammation While Increasing Other Immune Responses? What 14 Synovial-Tissue Donors Show
Original 2022 study of 14 rheumatoid arthritis tissue donors: THC increased TRPA1-linked calcium, reduced MMP-3 only alongside high-dose cell loss, and changed PBMC cytokines differently. What it cannot prove about human THC or impairment.
Can Cannabis Oils Reverse Aluminum Neurotoxicity? What a 144-Zebrafish Experiment Actually Measured
In 144 zebrafish, cannabis oils altered aluminum-associated social behavior and enzyme assays, but did not restore every tank behavior or establish human treatment.
Can a Negative Urine THC Screen Exclude Exposure After a CBD-Labeled Product? Five Emergency Cases
A five-patient CBD-product emergency study found negative urine THC screening with detected serum THC-COOH. Understand matrices, cutoffs and causation limits.
Did CBD-Rich Cannabis Reduce Plasma Cytokines? What a 23-Man Observational Pilot Found
A primary study of 23 men found a lower plasma cytokine composite after CBD-rich cannabis, but no significant plasma THC difference or memory interaction.
Can 16 ng/mL Whole-Blood THC Accompany Hallucination-Like Symptoms? A Controlled Cannabis Case
A controlled cannabis case reports whole-blood THC 16 ng/mL, acute perceptual symptoms, and route differences. Learn what the evidence cannot prove.
Can Plasma THC and Its Metabolites Predict Recognition-Memory Errors? A 31-User Mobile-Lab Study
In a 31-user mobile-lab study, plasma THC plus metabolites tracked word-recognition accuracy. Learn what d-prime findings cannot prove about a person’s impairment.
Can 11-OH-THC Glucuronide in Serum or Urine Prove Recent Cannabis Impairment? Evidence From a Synthesized Reference Standard
Can 11-OH-THC glucuronide prove impairment? Original synthesis and ten-serum, ten-urine results show what chemistry establishes—and what it cannot.
Can CBD-Dominant Cannabis Oil Produce a Positive Urine THC Screen When Plasma THC Is Mostly Unquantifiable? A 43-Person Trial
Original 43-person controlled study: CBD-rich oil containing THC, urine THC-metabolite screening through 144 hours, and mostly unquantifiable plasma parent THC. Forensic limits.
Does CBD-Rich, Low-THC Exposure Prevent Lasting Memory Effects? What Two Female-Rat Experiments Found
A primary female-rat study found adult recognition-memory deficits after THC, THC-rich/CBD-poor, and CBD-rich/THC-poor adolescent injections, with different stress and brain outcomes. Learn the forensic limits.
Did High-Concentration THC Change Human Blood-Cell Epigenetics? What a 16-Donor Laboratory Study Shows
An original 16-donor cell-culture THC study found dose-dependent DNMT, TET and DNA hydroxymethylation changes—not a blood-THC or driving-impairment test.
Can Wooden-Tip Mass Spectrometry Detect THC at Oral-Fluid Cutoffs? A Primary Laboratory Study
A primary WT-ESI-MS study found a 40,000 ng/mL THC detection limit in fortified urine and oral fluid. Learn why this cannot validate forensic impairment.
Can THC Plus CBD Lower Hippocampal Glutamate Without Restoring Memory Synapses? Evidence From Alzheimer-Model Mice
Original APP/PS1 mouse research found THC plus CBD changed evoked hippocampal glutamate without rescuing LTP or spines. Explore the forensic limits.
Which Tissues Retain JWH-210, RCS-4, and THC After Intravenous Dosing? An 18-Pig Study
Primary forensic data from 18 drug-exposed pigs compare IV JWH-210, RCS-4 and THC in bile, kidneys, lungs, brain, fat and vitreous—without implying human impairment.
Can a Serum Metabolomic Fingerprint Prove Cannabis Impairment? A 35-Person Placebo-Controlled Study
A placebo-controlled human THC study measured serum metabolites and vigilance, but its 80% use-history classifier did not validate individual driving impairment.
Can a Teen Driver Deny Cannabis Use Yet Test THC-Positive? What 718 Roadside Surveys Show
A 718-teen roadside study found 28 denials with positive THC tests and 17 discordant blood/oral-fluid pairs. Why neither proves a lie or impairment.
Can a Sativex Registry Prove THC Does Not Impair Driving? What 941 Prescriber Reports Actually Show
A 941-patient THC/CBD prescription registry noted 63 driving improvements, 19 declines and 514 inapplicable responses. Why it cannot prove individual impairment.
Does Severe Kidney Disease Increase Plasma THC After the Same Cannabis Dose? A 49-Person Study
A primary 49-person study found higher plasma THC and CBD exposure in stage 4–5 CKD after the same Sativex dose; adjusted THC–eGFR association was nonsignificant.
Can THC-Related Liver-Cell Gene Changes Prove Cannabis-Induced Hepatitis? A 2025 Primary Study
A 2025 primary study found THC-related gene changes in cultured liver cells. Learn why predicted targets and qPCR do not prove a patient’s hepatitis.
Does a High-Fat Meal Triple CBD Exposure? A 32-Adult Powder-versus-Oil Crossover Study
Original 32-adult four-period trial shows high-fat meals substantially raise plasma CBD exposure, while 7-COOH-CBD changes differ by formulation. Forensic limits explained.
Can Low-Dose THC Raise Brain mTOR While Lowering Adipose mTOR? A Mouse Time-Course Study
Original mouse study: early brain mTOR increases, later adipose mTOR decreases and age-specific plasma metabolomics. No measured blood THC or human impairment.
Did CBD/THC Gelcaps Relieve Chemotherapy Neuropathy or Pain? A 46-Person Placebo Trial
A 46-person placebo trial found no significant primary sensory or pain benefit from oral CBD/THC; adjusted sensory analyses were exploratory. Learn the forensic limits.
Does MDMA Plus THC Change Brain Waves Differently From MDMA Plus Alcohol? Two Controlled EEG Studies
Two controlled EEG crossover studies distinguish significant MDMA–THC theta/alpha interactions from nonsignificant MDMA–ethanol interactions—and driving limits.
Can Portable Raman Detect THC in Saliva but Miss It in Urine Without Separation?
A 2019 primary study showed why urine urea masked THC-associated Raman signals and how TLC separation helped. It did not validate impairment or forensic accuracy.
Can a Four-Minute Urine THC Screen Be Called 100% Accurate? What 100 Forensic Specimens Show
A 2025 study found 100/100 agreement for a four-minute urine THC-COOH screen. Examine the cutoff, LC-MS/MS correlation, and forensic limits.
Can a THC Urine Microsensor Prove Cannabis Use or Impairment? A Six-Level FPW Prototype Study
A 2017 FPW urine sensor showed THC responses at six spiked levels. See its actual frequency shifts, PSA controls, and why it cannot prove cannabis use or DUI.
Can THC-Rich Cannabis Increase False Word Recognition When a THC–CBD Strain Does Not? A 116-Person Study
A 116-person primary study links THC-dominant cannabis to more false word recognition, with important CBD-strain, blood-testing and eyewitness limits.
Can 15,973 THC-Tested Blood Cells Prove Impairment? The Study Had Only Two Volunteers
A THC RNA study sequenced 15,973 immune cells from just two people. Learn why 294 altered genes do not validate an impairment test.
Does a Year Without Cannabis Improve Football Reaction Speed? An 18-Athlete Study
In 18 NCAA football athletes, game-speed cognition improved after a year of cannabis abstinence. What S2 reaction scores prove—and do not prove—for impairment.