It’s going to be difficult to draw any meaningful conclusions as you would need to construct identical environments with and without access to marijuana combined with cloned DNA or twin studies. Even then, will that be enough to predict if someone will have an adverse reaction to marijuana based on their DNA?
A simple test to determine if a teenager who tries marijuana should be forced to stay away from it is whether they have an extreme reaction to it.
A simple test to determine if a teenager who tries marijuana should be forced to stay away from it is whether they have an extreme reaction to it.