Nearly $20.4 million in cannabis was purchased through adult-use retailers in Michigan on April 20, a date celebrated among ...

Despite concerns from marijuana legalization opponents who claimed the policy would lead to skyrocketing use by teens, ...

Marijuana legalization is growing — and so is the potency of today’s weed. It’s a lesson this reporter learned the hard way.

Teens using marijuana demonstrated somewhat slower rates of improvement on cognitive tests like verbal recall compared to their non-using peers.

Using medical marijuana appears to help people reduce the use of other medications, including opioids, sleeping aids and ...

Separate research from the National Institutes of Health says marijuana is the most commonly used drug during pregnancy.

A UC San Diego study looked at marijuana use and cognitive development in more than 11,000 teenagers over the course of ...

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 ...

Results from a recent student survey show cannabis use continues to fall despite recent legalization.

Firefighter unions have been pushing for the legislation to pass for several years. Firefighters deal with post-traumatic ...