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marijuana in a petri dish on a blue background showing the chemical structure of THC
DEA Moves Toward Approving More Research Marijuana Growers
A regulatory change initiated during the Obama administration appears set to be put into practice, allowing more than one supplier of cannabis research products.
DEA Moves Toward Approving More Research Marijuana Growers
DEA Moves Toward Approving More Research Marijuana Growers

A regulatory change initiated during the Obama administration appears set to be put into practice, allowing more than one supplier of cannabis research products.

A regulatory change initiated during the Obama administration appears set to be put into practice, allowing more than one supplier of cannabis research products.

marijuana
Image of the Day: Marijuana for Endometriosis?
Amy Schleunes | Jan 31, 2020 | 1 min read
THC, the psychoactive ingredient of cannabis, improved symptoms associated with the inflammatory disease in a mouse model.
Value of Medical Marijuana for Mental Health Questioned
Jef Akst | Oct 29, 2019 | 2 min read
A meta-analysis of more than 80 studies from the past four decades finds weak evidence to support the use of medicinal cannabis to treat anxiety, depression, and other mental health disorders.
CBD Linked to Sleep Disturbances in Adolescent Rats
Emily Makowski | Oct 23, 2019 | 4 min read
The animals showed changes in both slow wave and rapid eye movement sleep.
State Marijuana Legalization Aids Research Very Little
Ashley Yeager | Sep 20, 2019 | 7 min read
Recent federal announcements serve as reminders that in the US policy continues to outpace science when it comes to cannabis.
Human Testicles Contain Endocannabinoid System Components
Ruth Williams | Sep 19, 2019 | 3 min read
Proteins that synthesize, bind, and degrade endocannabinoids are present in the body’s sperm factories, suggesting that the use of cannabis may directly affect them.
vape pen and marijuana
Marijuana Unsafe During Pregnancy or Adolescence: Surgeon General
Nicoletta Lanese | Aug 30, 2019 | 2 min read
The federal government cautions that the drug can affect brain development in both teens and fetuses.
DEA Again Promises to Improve Access to Marijuana for Research
Ashley Yeager | Aug 26, 2019 | 3 min read
After years of stalling, the agency says it plans to provide notice on pending applications from growers—but only after it establishes new regulations for suppliers.
ancient cannabis evidence THC china burial site ritual ceremony pot brazier
Ancient Wooden Pots from China Contain Cannabis Residue
Chia-Yi Hou | Jun 12, 2019 | 2 min read
A brazier and charred stones, thought to be part of burial ceremonies, preserve signs that people used the drug thousands of years ago.
Potent Weed Linked to Psychosis
Jef Akst | Mar 20, 2019 | 2 min read
Frequent use of high-strength cannabis may increase the risk of mental health problems, according to a large-scale epidemiological study.
Infographic: How Exposure to Cannabis in Utero Affects Development
Andrew Scheyer | Jan 1, 2019 | 2 min read
Rodent and human studies have revealed a multitude of effects starting during gestation and lasting into adulthood.
Big Pharma Picks up on Medical Marijuana
Ashley P. Taylor | Dec 19, 2018 | 1 min read
A Novartis subsidiary is partnering with a Canadian cannabis company to sell medical marijuana worldwide.
Fetal Marijuana Exposure Stunts Rat Cognitive Performance
Jef Akst | Nov 5, 2018 | 2 min read
Offspring of rats exposed to vaporized cannabis had difficulty switching strategies to get a sugar reward, according to a study presented at the Society for Neuroscience conference.

Zimbabwe’s Medical Marijuana Future Uncertain
Tonderayi Mukeredzi | Sep 12, 2018 | 2 min read
The country is the second in Africa to permit cannabis cultivation, but months after approval there’s been little uptake by farmers and no scientific proposals.
Drug Approval Could Boost Research on Marijuana Treatment for Autism
Jessica Wright | Aug 17, 2018 | 4 min read
Epidiolex, a cannabis-derived medicine for epilepsy, will prompt federal regulatory changes that could crack open access to study the plant.
Synthetic Cannabinoid K2 Overdoses Are Rampant. Here’s Why.
Ashley Yeager | Aug 17, 2018 | 5 min read
NIDA pharmacologist Michael Baumann explains how “unscrupulous vendors” hijacked compounds used in neuroscience and turned them into dangerous drugs.
UK to Legalize Medicinal Cannabis
Catherine Offord | Jul 27, 2018 | 2 min read
Patients will be able to access the drug with a prescription, and there are no plans to allow for recreational use.
Canada Could Come to the Fore in Cannabis Research
Ashley Yeager | Jul 6, 2018 | 4 min read
The coming legalization of recreational marijuana is already increasing funding for studies, but regulations on such research have been slow to change.
FDA Approves First Marijuana-Derived Drug
Shawna Williams | Jun 25, 2018 | 2 min read
As the CBD-based medication enters the market, the agency promises a crackdown on producers of cannabidiol products that make unproven claims.
Opinion: Do Not Believe the Hype
Aymen I. Idris | Feb 5, 2018 | 4 min read
Marijuana ointments as cancer treatments remain a distant prospect. 
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