In a new study, young adults who frequently used cannabis had significantly higher cortisol levels upon waking up.

A new study finds combined use of pot edibles and alcohol leads to greater and longer-lasting driving impairment, and the combo could be missed by sobriety checks.

A large, new study finds kids who start using marijuana as teens experience slower gains in memory and thinking as they grow.

A new study involving more than 100 million people found recreational drugs like marijuana, cocaine and amphetamines significantly raise the risk of stroke – even in younger users.

A new study links spiritual or religious involvement to a significantly lower risk of harmful alcohol or drug use.

A new study finds family meals that include real conversation and fewer digital distractions lead to sharply lower rates of teen substance use.

A new study finds teens who use marijuana --- even just once or twice a month – face higher odds of poor grades, increased anxiety, aggression and low self-esteem.

A new clinical trial finds people who smoke weed drink less alcohol – at least in the short term. But researchers say the findings are preliminary and the drug should not be used as a substitute for alcohol just yet.

A new study finds more than 1 in 5 young adults are using marijuana or alcohol to help them fall asleep.

A new study finds nearly 42% of drivers killed in crashes in Ohio had high levels of THC in their blood.

National surveys conducted from 2021 to 2024 show more teens are vaping marijuana, and flavored versions are their drug of choice.

A new study finds pot users are nearly 4 times more likely to develop type 2 diabetes compared to the general public.