Marijuana

The iridescent abdomen of a cuckoo wasp (Hedychrum gerstaeckeri) looks beautiful when viewed under a microscope.

See 15 Mesmerizing Photos of Hidden Scenes Only Visible Through a Microscope

Winners of the Nikon Small World Photomicrography Competition captured insects, cancer cells, cat claws and more

This worm is genetically engineered so some neurons and muscles are fluorescent. Green dots are neurons that respond to cannabinoids, while magenta dots are other neurons.

Tiny Worms Get the Munchies, Too

When dosed with compounds found in cannabis, nematodes eat more and show an even greater preference for their favorite foods

Over several decades, researchers have identified more than 140 active compounds, called cannabinoids, in the cannabis plant. 

The Scientific History of Cannabinoids

Hundreds of these cannabis-related chemicals, both natural and synthetic, now exist, and researchers want to know how they can hurt and help us

Some experts say cannabis product packaging may appear similar to other snacks, which can confuse kids. 

More Kids Are Accidentally Eating Marijuana Edibles, Study Finds

Between 2017 and 2021, accidental cannabis ingestion in young children rose by 1,375 percent

Thirty-seven U.S. states and D.C. have laws permitting the use of medical marijuana.

For Pain Relief, Cannabis May Be No Better Than a Placebo

Previous research has shown the placebo effect can be extremely powerful, rivaling ibuprofen or morphine

 The federal government considers marijuana an illegal Schedule I drug, making it notoriously difficult to research.

New U.S. Law Will Boost Marijuana Research

The Medical Marijuana and Cannabidiol Research Expansion Act will make it easier for researchers to access marijuana and study its therapeutic uses

Cows produced more saliva and snot, were wobbly on their feet and moved their tongues around a lot after eating high-cannabinoid hemp.

Cows That Ate Hemp Produced Milk With THC and CBD

New research adds insights to the debate over using industrial hemp as livestock feed

Researchers say that wild plants that gave rise to today’s three lineages of cannabis grew in present-day China.

New Study Suggests Cannabis' Wild Ancestors Likely Came from China

The analysis identifies East Asia as a potential source of genetic diversity for the growing market for medical and recreational marijuana

Indoor cannabis growing in California.

Growing an Ounce of Pot Indoors Can Emit as Much Carbon as Burning a Full Tank of Gas

In some parts of the United States, the growing cannabis industry is responsible for significant greenhouse gas emissions

Participants likely used wooden bowls known as braziers to burn cannabis and release its mind-altering vapors

The First Evidence of Smoking Pot Was Found in a 2,500-Year-Old Pot

A new study suggests ancient humans used cannabis to commune with nature, spirits or even the dead

Observers in the galleries of a legislative hearing about a marijuana bill in May 1973

Why the 1970s Effort to Decriminalize Marijuana Failed

The explosion of kid-friendly paraphernalia led the federal government to crack down on pot

Hemp harvest at Mount Vernon

Hemp Makes a Return to George Washington's Farm

The first crop of industrial hemp grown in centuries was recently harvested at Mount Vernon

Marijuana Advocates Want to Establish a Standard Unit of Highness

What’s the weed equivalent to an alcoholic drink?

Levi Woodbury is on the $1 stamp; George M. Bibb, on the $5 stamp. Robert Walker is on the $10 stamp and James Guthrie is on the $50 stamp. George Washington is on the extremely rare $100 stamp.

Before Reefer Madness, High Times and 4/20, There Was the Marijuana Revenue Stamp

Originally designed in the 1930s to restrict access to the drug, these stamps draw a curious crowd to the Postal Museum

In 1965, 45 Percent of Americans Smoked, Today It's Only 15 Percent

That’s the lowest percentage ever recorded

Does this look like a stoner to you?

Did Shakespeare Smoke Pot?

Tobacco pipes in the Bard’s backyard may retain traces of cannabis, but some historians remain skeptical

Cannabis is Being Used to Build Homes

“Hempcrete” turns weed into building materials

Some sommelier have taken an interest in pairing strains of marijuana with wine varieties.

Which Wine Should You Pair With Your Weed?

Forget the cheese and charcuterie

Marijuana buds are often two to three times as potent as they were 30 years ago.

Modern Marijuana Is Often Laced With Heavy Metals and Fungus

Medical and recreational marijuana use is increasingly legal—but do consumers know what they're smoking?

Denver Police Stoke a New Halloween Fear—Pot-Laced Candy

You really think people are going to give marijuana away?

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