Only certain compounds in cannabis are at fault.
Cannabis use is linked to psychosis, but only a small number of users will experience it.
Small vials of CBD, which some believe could be a cure for many ailments.
A drug made from a molecule produced from cannabis gained unanimous approval from an FDA panel. But the molecule, CBD, is decidedly different from some other ingredients in cannabis: It doesn't result in a high.
Pharmacy or marijuana dispensary?
Scott Sonner/AP Photo
Marijuana has a rich linguistic tradition. But drive by dispensaries like 'Advanced Medical Alternatives' or 'Alameda Wellness Center,' and you might think you’re passing the office of a physical therapist.
A woman lights up at Sunset Beach in Vancouver, B.C., last year on April 20. A new Calgary bylaw, meantime, bans the public consumption of cannabis and restricts people to smoking weed only at home, unfairly affecting those who rent.
THE CANADIAN PRESS/Darryl Dyck
A new Calgary bylaw prevents people from smoking weed in public; only homeowners can spark up on their private property. Here's why that unfairly targets and penalizes racial minorities.
Marijuana varieties on display in a California dispensary.
AP Photo/Mathew Sumner
Medical marijuana? Recreational marijuana? Both or neither? Here's a quick guide to the topsy-turvy landscape for marijuana regulation in the US.
Canada is on track to legalize marijuana on July 1. But why was it criminalized in the first place?
THE CANADIAN PRESS/Adrian Wyld
Canada is legalizing marijuana on July 1. But how the drug became criminalized in the first place is an interesting saga that involves anti-Chinese racism and international influence.
The first UK survey of cannabis potency in ten years finds that skunk now dominates the market, while hashish has all but disappeared.
Customers lining up to legally buy recreational marijuana in West Hollywood, Calif.
AP Photo/Richard Vogel
The attorney general's memo portended an end to a hands-off approach to this enforcement conundrum. It could backfire.
A 2015 study from the Canadian Centre on Substance Abuse describes youth perceiving marijuana as “relatively harmless” and “not as dangerous as drinking and driving.”
Provincial policies to implement the legal consumption of marijuana are unlikely to protect children and youth. High school teachers and parents will be on the front line.
A still from the 1936 propaganda film ‘Reefer Madness.’
Research from the last few decades suggest marijuana helps more than it harms. But Jeff Sessions' proposed crackdown would take us back nearly a century.
Patients in 29 states can legally use medical marijuana to treat their symptoms.
Patients in 29 states rely on medical marijuana to treat pain, nausea, seizures and other ailments. But all that could change.
Drops of marijuana extract are placed on candy in the kitchen of AmeriCanna Edibles in 2017 in Boulder, Colorado.
(THE CANADIAN PRESS/Joe Mahoney)
The promised marijuana legalization date of July 2018 is approaching fast. Many outstanding regulatory issues -- such as online sales and occupational health and safety -- pose urgent challenges.
Cannabis plant strains in jars in MediJean’s Health Canada-licensed tissue culture development lab are kept for research as manager Abdul Ahad works in the Richmond, B.C., facility, in this 2014 file photo.
(THE CANADIAN PRESS/Darryl Dyck)
The legal cannabis industry will have to develop scientific research and evidence based growth methods and technology if it is to succeed against the secretive illicit industry.
Marijuana brand name stickers are visible as customers line up at the counter in CannaDaddy’s Wellness Center marijuana dispensary in Oregon in April.
(AP Photo/Don Ryan)
There's a strong case for governments to allow cannabis producers to brand their products via packaging and advertising like any other product. It could boost quality and consumer satisfaction.
You can eat and cook with whole hemp seeds (right), hearts (centre) and ground seed (left).
Hemp seeds are now legal as a food product in Australia. They won't make you high, but they are very nutritious.
Cannabis is the most widely available and most used illegal substance in the world, and Canadian youth are among the top users. Parents and their kids need to prepare for the day it becomes legal in Canada in 2018.
Parents can help protect their kids from cannabis abuse by openly discussing the health risks, the pleasures and the responsible ways to use the drug.
There is hyperbole in the way evidence for welfare drug testing is being presented.
DAVE HUNT/AAP Image
Most of the evidence drawn on by critics of the trial comes from places that have implemented such programs. So, have they worked?
Results may vary.
Many hope that marijuana will help their insomnia. A sleep psychologist examines the evidence.
Thousands of South Africans are calling for the legalisation of marijuana.
If South Africa's argument in court is that marijuana causes harm, it deserves to lose. The real question it should ask is whether criminal prohibition is the effective way forward.
Dozens of studies and numerous reviews have demonstrated the safety of vaccines.
In an era when opinion often trumps evidence in public health issues, it's time to support and invest in evidence-based medicine to protect the public from dangerous, poorly informed beliefs.