Set up by the NIDA, the study aims to analyze the development of children's brains ... can also leave them at higher risk of depression. Smoking marijuana at a young age can also affect how the brain ...

Studies are inconclusive about the association between marijuana use and miscarriage, but it is clear regular or heavy use ...

A new study finds that heavy marijuana use by adults could have long-term effects on the brain. What kinds of effects? WSJ's Jason Bellini has #TheShortAnswer.

Marijuana comes from the cannabis sativa ... which are used in normal brain function and development. THC co-opts these natural pathways to produce most of its effects.

While marijuana use remains a federal crime ... mimics molecules that our bodies naturally produce that regulate brain ...

Kimura conducted an experiment to give young mice a cannabinoid, a substance found in marijuana. The left image is the brain of a mouse ... could hinder the development of a teen's frontal lobe ...

Set up by the NIDA, the study aims to analyze the development of ... higher risk of depression. Smoking marijuana at a young age can also affect how the brain builds connections and thickens ...

Marijuana, best-known for its "feel-good" effects ... When weed's active ingredient, tetrahydrocannabinol (THC), hits the brain, it causes cells to release dopamine. It is a part of the brain's ...