A new study analyzing data from millions of patients shows significant links between cannabis use and major adverse ...

Treat it like tobacco: avoid criminalizing it, discourage its use, and protect bystanders, says editorial. Cannabis use is ...

While Ohio's new budget has been the legislative focus in the last two weeks, lawmakers continue to push to change the rules ...

Researchers say the health-care system needs to be more aware of cannabis hyperemesis syndrome, a condition characterized by ...

A new study has found that cannabis use may substantially double the risk of heart death and cause an increased risk of ...

Using marijuana doubles the risk of dying from heart disease, especially from stroke and heart attacks, a large new study found.

Marijuana use has increased dramatically among seniors 65 and older in the United States, as more older adults use cannabis ...

Marijuana use disorder is common in Washington, where weed is legal, and more severe in people who use both medical and recreational marijuana. CNN values your feedback 1.

Two recent studies have linked cannabis use to cardiac events, particularly among young, healthy people under 50. A cardiologist weighs in on the findings.

Researchers tracking cannabis say that the picture of who uses the drug — and how — is evolving, and point to a few key trends. Use appears to be rising among everyone — except teens.

Marijuana use among adult New Yorkers jumped in the first two years after the state legalized recreational cannabis in 2021.