People with cannabis use disorder show signs of altered dopamine activity in the brain that mirror patterns seen in psychosis, according to a new brain imaging study published in JAMA Psychiatry.

Acute cannabis use-linked care linked to higher dementia risk. The study, which ran from 2008 to 2021, included a total of 6,086,794 people. All were over 45 years old, with a mean age of 55.2 ...

A large global study links cannabis use to a higher risk of heart attack, stroke and cardiovascular death, with concerns for younger and frequent users.

People with cannabis use disorder (CUD) have higher dopamine levels in an area of the brain linked to psychosis, found a new study published in JAMA Psychiatry.. The findings may help explain why ...

It’s not the first time smoking weed has been linked to a higher risk of psychosis. For instance, a 2024 study found that frequent use of high-potency pot increased the likelihood of psychosis ...

Legalization of cannabis products may be linked to growing use among teens, a new study found. Teen use of cannabis rose 26% in Canadian provinces that legalized the sale of edibles and extracts ...

Cannabis use is linked to a doubling in the risk of dying from cardiovascular disease, with significantly heightened risks of having a stroke or acute coronary syndrome—sudden reduced or blocked ...

New study links marijuana use to increased risk of heart attack and stroke 04:11. With growing marijuana use across the country, studies have looked at the link between cannabis use and ...

A study found a 26% increase in teen cannabis use in provinces that began selling cannabis edibles and extracts in October 2019. Use of edibles alone jumped 43%, researchers reported April 18 in ...

Cannabis use is linked to a doubling in the risk of dying from cardiovascular disease, with significantly heightened risks of having a stroke or acute coronary syndrome—sudden reduced or blocked ...

Medical visits related to cannabis increased more than fivefold among adults age 45 and older between 2008 and 2021, the new study found. Among adults 65 and over, visits increased 26.7-fold.