News & Opinion
Top 10 Innovations
Cell & Molecular Biology
Disease & Medicine
Ecology & Environment
Genetics & Genomics
Pharma & Biotech
Image of the Day
Rina Shaikh-Lesko | Oct 26, 2015
Oxytocin and social contact together modulate endocannabinoid activity in the mouse brain, which could help explain the prosocial effects of marijuana use.
Obama Administration Eases Marijuana Research Requirements
Amanda B. Keener | Jun 29, 2015
Scientists wishing to study marijuana’s health effects may now forgo a review by Public Health Services.
Cannabidiol Quells Seizures
Jef Akst | Apr 14, 2015
The marijuana-derived compound shows promise in treating rare forms of epilepsy that cause children to have seizures multiple times a day.
Neuroscience of Marijuana Munchies
Ruth Williams | Feb 18, 2015
Cannabinoids cause appetite-suppressing neurons to produce an appetite-stimulating hormone in mice.
Daniel Cossins | Dec 1, 2014
As medical marijuana businesses set up shop across the U.S., a handful of companies are taking the pharmaceutical route, guiding cannabis-derived drugs through clinical trials.
Chronic Weed Use Shrinks Brain Region
Bob Grant | Nov 12, 2014
Long-term marijuana smokers have less gray matter in their orbitofrontal cortex than nonsmokers, but other brain circuits may compensate by increasing connectivity.
NIDA Weighs In on Pot
Bob Grant | Jun 9, 2014
Addiction is one among many potential adverse effects of the increasingly popular drug, according to the National Institute on Drug Abuse.
Can Pot Be Lethal?
Bob Grant | Feb 24, 2014
New post-mortem examinations suggest that marijuana can kill.
Get Off the Pot
Jef Akst | Oct 15, 2013
Researchers demonstrate the successful treatment of marijuana abuse in rats and monkeys.
Pot Not Linked to Poor Health
Tracy Vence | Sep 24, 2013
Marijuana use does not correlate with negative health outcomes or hospitalizations, a study has found.