Scientific American

Today's cannabis plant is highly cultivated and incredibly potent. Treating it like a commodity, and not a testable, regulated medicine, is hurting people

Yasmin Hurd is director for the Addiction Institute within the Mount Sinai Behavioral Health System as well as professor of psychiatry, neuroscience and pharmacological sciences at the Icahn School of Medicine in New York City. Her translational research examines the neurobiology of drug abuse and related psychiatric disorders, and has included seminal studies about the developmental effects of cannabis. She holds a Ph.D. in neuropsychopharmacology from the Karolinska Institute in Sweden.

Violins, the ink on the Declaration of Independence and other ways that insects shaped human history

Antimicrobial resistance could claim 39 million lives by 2050, yet the pipeline for new antibiotics is drying up. U.S. policy makers can help fix it

Expertise bulks up the brain’s ability to think deeply, a skill that may generalize across tasks

Hanna Poikonen is a senior researcher and lecturer at the Swiss Federal Institute of Technology Zurich. She studies the brain functions underlying expertise, including in mathematicians, dancers, musicians and political enthusiasts.

Damage to your environment can bring a profound sense of loss; that feeling, called solastalgia, can also provide inspiration

Queen Essang lives in the Federal Capital Territory (FCT), Abuja, Nigeria, and works as a freelance writer focusing on environmental issues and their psychological impacts. She has a degree in botany and ecological studies from the University of Uyo in Akwa Ibom State, Nigeria, and was involved in the strategic implementation of climate change action and mitigation measures in the FCT Administration’s department of forestry.

The multiverse offers no escape from our reality—which might be a very good thing

President-elect Donald Trump's pick to lead the Department of Homeland Security and its disaster agency has said people aren't driving temperature increases and declined to accept federal climate money for disaster preparedness as governor of South Dakota