It notes that average levels of the psychoactive ingredient in cannabis, THC, are five to 10 times higher than levels in the ...

The drug, legal in much of the country, is widely seen as nonaddictive and safe. For some users, these assumptions are dangerously wrong. By Megan Twohey Danielle Ivory and Carson Kessler The ...

Alex Berenson's 'Tell Your Children' gains renewed attention as cannabis-linked psychosis concerns finally reach mainstream ...

Adolescents who use cannabis could face a significantly higher risk of developing serious psychiatric disorders by young adulthood, according to a large study published in JAMA Health Forum. The ...

A new study shows that teens with past-year cannabis use are twice as likely to be diagnosed with psychotic or bipolar disorders within 2 years of first use.

Kennon Heard, MD, Ph.D., was skeptical when he first heard about cases in emergency departments of severe, recurring episodes of nausea and vomiting associated with chronic use of marijuana. In 2004, ...

MONDAY, April 7, 2025 (HealthDay News) -- In a best practice guideline issued by the American College of Physicians and published online April 4 in the Annals of Internal Medicine, advice is presented ...

An analysis of 35,000 Canadians shows that rising cannabis use and worsening mental‑health symptoms are increasingly appearing together, with the connection between the two strengthening over time.

Some people have described a bizarre side effect after using marijuana: uncontrollable vomiting. It’s sometimes called “scromiting” — a mash-up of screaming (from intense pain) and vomiting. The ...