Does Researching Casual Marijuana Use Cause Brain Abnormalities?

Last week, a study was published that claimed to establish a link between casual marijuana use and abnormalities in the brains of recreational users. Intrigued by a claim made by one of the paper's authors in the wave of ensuing press coverage, UC Berkeley computational biologist Lior Pachter decided to take a closer… » 4/22/14 8:20am 4/22/14 8:20am

What can we actually learn from the UK's first marijuana 'overdose'?

Gemma Moss recently became the first woman in Britain "ruled to have been poisoned to death by smoking cannabis," her sudden death referred to by tabloids as "the tragic proof that cannabis can kill." But Moss's story, while undeniably sad, has told us next to nothing about the dangers of pot. At the same time, its… » 2/01/14 10:00am 2/01/14 10:00am

Debunking this week's hottest pot myths point-by-point

Earlier this week, heavyweight columnists David Brooks and Ruth Marcus weighed in on the debate over the recent legalization of marijuana in Colorado. Armed with reason and findings from several studies, Time's Maia Szalavitz has served up a refreshing piece of debunkery that tackles their misinformed contentions… » 1/05/14 3:00pm 1/05/14 3:00pm

You Can Smoke Pot In GTA V, According to Ratings Board

We had a hunch it was going to be possible, and, now, the people who rate video games are letting the cat out of the dimebag. You can smoke pot in GTA V, according to the Entertainment Software Ratings Board. That same group has offered a bunch of other mild spoilers for GTA V, if you're interested. » 8/20/13 7:46pm 8/20/13 7:46pm

What are the deadliest drugs in the United States?

Which drugs are actually killing Americans? Popular Science combed through overdose statistics from the CDC and turned the numbers into an infographic. » 4/25/13 12:47pm 4/25/13 12:47pm

Drivers high on weed test their driving skills

Three drivers, plenty of pot, a driving course and a drug recognition expert from the local Sheriff's department. You know where this is going. » 2/18/13 7:40am 2/18/13 7:40am

An ad for Maltos-Cannabis, the most cannabis-o-riffic food supplement…

Historically speaking, cannabis has been used for a whole slew of tinctures, potions, and other such miracle cures. But for the "nervous persons, weak children, and convalescents" of the 1890s, there was Maltos-Cannabis, a nutritious weight-gaining supplement that set the consumer back a mere 75 cents a can. » 9/12/12 7:00am 9/12/12 7:00am

Bad news, everyone: smoking too much pot as a teen could permanently…

One of the most thorough studies of its kind has concluded that smoking too much reefer as a teenager is linked to significant cognitive decline. More frightening still: the effects could be permanent. Here's everything you need to know about the study's findings. » 8/28/12 8:10am 8/28/12 8:10am

What cannabis actually does to your brain

Archaeologists recently found a 2,700-year-old pot stash, so we know humans have been smoking weed for thousands of years. But it was only about 20 years ago that neuroscientists began to understand how it affects our brains. » 4/20/12 12:00pm 4/20/12 12:00pm

How many joints would you have to smoke to die of a marijuana overdose?

The short answer? An absolutely comical amount, perhaps lit by a jet engine. It would also help if you owned a residence in Toontown or were physically a Tex Avery illustration. In a 1988 DEA brief, Judge Francis Young did the math and broke down just how much sticky-icky it would take to off you entirely: » 3/08/12 7:15am 3/08/12 7:15am

Driving stoned doubles your risk of a serious car crash

Evidence suggests that driving high may be less dangerous than driving drunk, but driving stoned is still driving impaired — and assuming otherwise could get you killed. » 2/10/12 9:20am 2/10/12 9:20am

This is what your brain on drugs really looks like

Scientists this week published a study that reveals what the human brain looks like under the influence of psilocybin, the hallucinogenic chemical found in magic mushrooms. » 1/25/12 9:05am 1/25/12 9:05am

Legalizing marijuana could reduce traffic fatalities

On the fence about legalizing marijuana? If so, consider this: legalizing weed could save your life. In the most comprehensive study of its kind ever conducted, the Institute for the Study of Labor has revealed in a provisional discussion paper that the legalization of medical marijuana in the United States is linked… » 12/01/11 3:18pm 12/01/11 3:18pm

Obesity is less common in pot smokers

Here's a scientific finding you probably never saw coming: two studies that examined over 50,000 people between them have revealed that pot smokers — despite being prone to serious cases of the munchies — actually have a lower risk of obesity than people who pass on the grass. » 9/07/11 11:00am 9/07/11 11:00am

What cannabis actually does to your brain

Archaeologists recently found a 2,700-year-old pot stash, so we know humans have been smoking weed for thousands of years. But it was only about 20 years ago that neuroscientists began to understand how it affects our brains. » 4/20/11 7:25pm 4/20/11 7:25pm

10 science fiction and fantasy characters who were stoners

Today is April 20, a day better known as International Planetarium Laser Show and Ding Dong Appreciation Day. In honor of this momentous celebration, we bring you a bevy of fantastical characters from speculative fiction who probably smell like patchouli. » 4/20/11 10:35am 4/20/11 10:35am

The scientific breakthrough that will turn cannabis into the new aspirin

Yesterday scientists announced that they'd discovered a way to harness the painkilling powers of the active ingredient in marijuana, THC, while eliminating the high. What this means is that a special, non-hallucinatory version of THC could become the new aspirin. » 4/04/11 8:00am 4/04/11 8:00am

10 ways to party hard (from beyond the grave)

Just because you've got a mouthful of formaldehyde (instead of Jägermeister) doesn't mean you have to give up your party-hearty lifestyle deathstyle! Here are 10 documented ways you can become a weekend warrior for all eternity. » 6/28/10 6:35pm 6/28/10 6:35pm

The Best Scifi Movies to Watch While Stoned Into Orbit

Today is 4/20 and it's time to celebrate by contemplating the wonders of outer and inner space. Here's what to watch today at 4:20 in order to blow your mind. » 4/20/09 2:56pm 4/20/09 2:56pm