Young adults who both vape and smoke cannabis have higher odds of developing functionally important respiratory symptoms than nonusers.

Scientists find consistent brain changes linked to tobacco use, but say cannabis research is still too limited to draw firm conclusions. Study: Associations of cannabis use, tobacco use and co-use ...

Scientists found that people who use both cannabis and tobacco show a distinct brain pattern tied to mood and stress regulation. Their scans revealed higher levels of an enzyme that reduces a natural ...

Can smoking weed help you cut down on drinking alcohol? A new study say yes — at least within the rigorous confines of a laboratory experiment. While it remains to be seen how those findings apply to ...

Monica Romano was 13 when she first tried cannabis in the 1980s. It started out as a social way to spend a Friday night ...

Smoking cannabis can increase the risk of heart problems—but doing so and eating highly processed foods increases cardiac health risks even more, a new University of South Florida study says. The ...

Forbes contributors publish independent expert analyses and insights. Emily Earlenbaugh covers cannabis science and culture. Apr 08, 2026, 06:35pm EDT Apr 21, 2026, 02:03pm EDT This voice experience ...

Reports of vivid dreams are “very well known” in cannabis and neuroscience research, says Andrew Kesner, assistant professor ...

Medical marijuana has been legal in Florida for a decade now for people with specific medical conditions, and nearly a million Floridians have an active medical marijuana card. But questions still pop ...

Share on Pinterest A new study found that smoking cannabis before drinking led participants to drink less. Aaron McCoy/Getty Images Smoking cannabis before drinking can significantly curb how much ...