A new study finds children exposed to cannabis in the womb have more problems with thinking, paying attention and impulse control.

A large, new study finds pot use during adolescence is associated with worse academic performance.

A new study out of Duke University finds many patients with chronic pain are co-using pot and tobacco, and the combination may actually amplify pain in the long run.

In a new study, pregnant women who used cannabis faced greater odds of gestational hypertension, preeclampsia and other complications.