Heavy weed use may be far more dangerous than people realize, according to a pair of studies published in JAMA Network Open.

Teens have access to vastly more potent cannabis than their parents had at their age. Parents need to understand the risks, ...

If you think quitting cannabis means your brain will bounce back immediately, think again. A groundbreaking new research ...

Millions of Americans use cannabis and would like to think the products they buy are safe. But regulation is state by state ...

A new study from Canadian researchers has found that the proportion of new schizophrenia cases associated with cannabis use ...

Marijuana has been recreationally legal here in Washington since 2012, and it's become big business for the ... Now, doctors are seeing more harmful, and sometimes fatal consequences from overuse ...

One of the largest studies to date found more frequent use of marijuana over time reduces the ability to remember key ...

New Brunswickers who buy illicit cannabis products may be getting more, and less, than they bargained for. A study by the Research and Productivity Council indicated that THC and CBD levels in ...

Indoor cannabis cultivation in the United States consumes more energy than all outdoor agriculture combined, leading to significant environmental concerns and raising questions about the ...