Research suggests cannabis suppresses REM sleep, raising questions about memory, emotion and the purpose of dreams.

Stephen Lankenau has spent years studying how people use cannabis in everyday life. As director of Drexel University’s Medical Cannabis Research Center, he has watched legalization spread, products ...

Research suggests people who often use cannabis start their day with higher cortisol levels than people who don't, indicating ...

Cannabis, commonly known as marijuana, is a plant that contains psychoactive compounds that can temporarily alter people's brain activity and perceptions. While the consumption of this plant for ...

Evidence supports cannabis-based therapies for a limited number of conditions. Here’'s what clinicians should know — and tell ...

Marijuana may help you unwind—but using it too often could have the opposite effect on your stress response. Researchers say ...

A new National Sleep Foundation-funded survey found that nearly 10% of adults use it to help them sleep. But researchers continue to debate whether it really helps.

Share on Pinterest There are mixed opinions on whether cannabis can help in the treatment of opioid use disorder. Bloomberg Creative/Getty Images Cannabis is being touted as an effective treatment for ...

Share on Pinterest Most medical professionals advise people who are pregnant to avoid exposure to cannabis. jamie grill atlas/Stocksy Researchers say they looked at 9,000 pregnancies and concluded ...