THC use and some mental health implications.

THC use can be a controversial topic. People are either generally for using it and legalizing it, or oppose it. Regardless of your stance, here is some compelling scientific data about the mental health implications in people who abuse it or over use it.
 

Narcissism and depression

Great article about the link between depression and narcissism. The article also differentiates the differences between vulnerable narcissism and grandiose narcissism and how depression manifests itself with each type.