People who regularly use marijuana experience changes in their brain structure and function, but it's not clear that cannabis is the cause, a new study finds. Researchers found specific differences in ...

Since its recreational legalization in 2016, marijuana has taken over Boston culture. From Hempfest — also known as the Boston Freedom Rally — on Boston Common to weed pop-up shops at festivals, the ...

Lifetime cannabis use is associated with several changes in brain structure and function in later life, suggests an observational study, but these associations may not be causal, finds a genetic ...