One in ten cannabis users are dependent on the drug, according to some estimates.
Cannabis edibles will be legal in October. But the regulations set by Ottawa on cannabis edibles are confusing to retailers, making it difficult for Canada to lead the way for other countries.
Canada's federal government is running out of time before the summer session to pass a bill that would pardon those convicted of minor cannabis possession.
Federal officials have repeatedly claimed cannabis supplies are sufficient. But their own data suggest otherwise.
With cannabis, governments must balance taxing legal sales versus competing with illegal ones.
Marijuana is known for delivering a good high. But the plant's uses go well beyond the recreational. Marijuana contains a trove of medicinal compounds whose uses we are just now discovering.
Government data outline what’s popular with Canadian cannabis shoppers. Among other things, they prefer smoke-able cannabis, high-quality products and in-store shopping.
It can be really tricky to know what to do when someone you care about starts using drugs. Raising the issue and listening without judgement is a good place to start.
Pets are vulnerable to cannabis toxicity - by ingesting cannabis products and also by inhaling second hand smoke. In some cases this can be lethal.
People who use party drugs say it gives them energy to dance and socialise, reduces their inhibitions and enhances their feelings of connection to others.
Most people assume drugs are illegal because they are dangerous, but the reasons aren't related to their relative risk or harm.
Government data suggest medical cannabis availability improved after legalization in Canada. But producers have struggled to meet demand for recreational cannabis other than oils.
Around 35% of Australians have tried marijuana at some point in their life, and 11% have tried ecstasy. Most people who try drugs do so for a short period in their lives – mostly in their 20s.
As cannabis is legalized in Canada and parts of the United States, it's worth looking back on the public health impact of the repeal of alcohol Prohibition in the U.S.
Parents of teens often worry about marijuana use and whether it might lead to other drugs or behavioral problems. A recent study suggests it doesn't, but that there are real dangers to be aware of.
The sexualized use of crystal meth by gay men is one of the key drivers of rising HIV rates and has many negative mental health consequences. Integrated sexual and substance use care is vital.
Research shows that THC and CBD in cannabis have potential to interrupt the vicious cycle of opioid addiction, dependence, withdrawal and relapse.
Two-thirds of all US states now have some kind of legal pot, and support for legalization has never been higher. But ballot initiatives can only take legalization so far, researchers say.
Midterm voters in Utah, Missouri, Michigan and North Dakota will decide whether to join the 31 US states that have some form of legal marijuana. But ballot initiatives can only take pot so far.
Radula liverwort shares an intriguing similarity to cannabis – researchers are working out what it does to the brain.