Oct 20, 2026
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.
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Hospital Blood Tests
Browse source-supported forensic toxicology guides in this subject area.
Oct 20, 2026
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.
Read guideOct 20, 2026
Can a THC Blood Cutoff Prove Impairment After an Edible? What a Ten-Study Pharmacokinetic Model Actually Shows
A ten-study THC pharmacokinetic model estimates plasma cutoff exceedance after edibles—not real driving impairment. Learn the specimen and legal limits.
Read guideOct 20, 2026
Can Oral THC Peak Around Four Hours Yet Persist Before the Next Dose? A 24-Vervet Study
A 24-vervet primary study found an oral THC peak near four hours and higher day-eight predose readings. Review analytes, method limits, and forensic relevance.
Read guideOct 20, 2026
Can Prenatal THC Affect Rat Memory While Anxiety Tests Remain Nonsignificant? A 43-Offspring Study
A complete rat study found selective memory and hippocampal RNA changes after prenatal THC, but several anxiety and working-memory tests were nonsignificant. Limits explained.
Read guideOct 20, 2026
Can Oral THC Produce DNA-Damage Signals in Rat Brain Cells Without Changing Cholinesterase? A 30-Rat Study
Original 30-rat THC experiment: comet-assay DNA signals in brain and white cells, significant brain redox markers, and nonsignificant cholinesterase findings.
Read guideOct 20, 2026
Can Exercise or Fasting Make Residual Cannabis Look Like New Use? A Six-Person Serum and Urine Study
Does a workout or a 24-hour fast explain positive urine THC? Examine six abstinent cannabis users, 188 urine specimens, 34 serum samples, and key forensic limits.
Read guideOct 20, 2026
Does Prenatal THC Change Muscle Genes Without Demonstrable Fibrosis? An 18-Offspring Primate Pilot
An original 18-offspring rhesus study found prenatal THC-related muscle gene signals but no significant collagen-area difference. What can that establish?
Read guideOct 20, 2026
Can Medicinal THC Slow Complex Trail Making While Reaction Time Remains Unchanged? Two Studies of 78 Patients
Original 78-patient research finds prescribed THC slowed complex Trail Making B despite no significant simple reaction-time change. What that means—and cannot prove—in DUI litigation.
Read guideOct 20, 2026
Does HHC-COOH in Blood Prove HHC Consumption? What 308 Forensic Cases Reveal
Can blood HHC-COOH prove HHC use? A 308-case primary forensic study and human liver microsome experiment demonstrate why THC metabolism complicates attribution.
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