Millennials are in favor of the legalization of weed and haven’t bought into talk of its negative health effects, but a new study brings light to possible brain abnormalities in even casual smokers.

Millennials are in favor of the legalization of weed and haven’t bought into talk of its negative health effects, but a new study brings light to possible brain abnormalities in even casual smokers. Research from Harvard Medical School and Northwestern University shows that young adults who smoked around four times per week had abnormal brain growth compared to those who didn’t smoke weed. (TIME)