Most older adults who seek out marijuana do so to avoid negative effects associated with traditional pharmaceuticals or ...

An Arizona political consultant is abandoning an adult-use cannabis sales repeal effort, claiming he was misled about the industry's harms.

The decision comes about four months after President Donald Trump signed an executive order that sought to classify cannabis ...

The Justice Department reclassified marijuana as a Schedule III drug, a shift that affects research and taxes but not legalization ...

Add Yahoo as a preferred source to see more of our stories on Google. Using marijuana as little as once per month is associated with a higher risk of both heart attack and stroke, according to a large ...

Sean Noble scraps plan to challenge Arizona's recreational marijuana law, citing changing political climate and federal reclassification.

An excerpt from Peter Grinspoon's book, "Aging Well with Cannabis ...

A growing portion of Americans are reporting daily and near-daily marijuana use, in numbers now higher than the share of daily and near-daily alcohol drinkers, according to a new analysis. About 17.7 ...

Using medical or recreational marijuana to ease symptoms of numerous mental health conditions doesn't work, according to two new analyses of existing gold-standard research. Medical marijuana includes ...

Teen marijuana use has hit its lowest point in over three decades, a new study reveals, defying concerns that legalization might spur a rise in use among young people. The University of Michigan’s ...

Many life insurance companies are softening their stance on cannabis, but the difference between "occasional user" and "smoker" rates can still cost you thousands Written By Written by Insurance Staff ...

Using marijuana as little as once per month is associated with a higher risk of both heart attack and stroke, according to a large study published Wednesday by researchers from Massachusetts General ...