It could be argued that mental health is such a big subject in its own right that this site should not accept such questions and should stick to physical health. Should we accept mental health questions or not?
Based on the comments to the other answer I propose: mental health questions are on-topic for the following reasons:
- mental health is part of global health
- in some cases, it's difficult to draw a line between the two areas
- there are several interactions between psychological processes and physical-organic phenomena
Personally, I find mental health things like psychopathy or narcissism very interesting topics.
So I would vote to include these type of questions.
On the other hand, there is already Cognitive Sciences.
No, this site was was created on the premise of serving medical health. There is nothing in the proposal suggesting this extend into physiological or mental health issues, and we did not solicit support from that community. That is simply a different scope of expertise … well, not exactly "simply" — it's a complicated issue — but this site should focus primarily on issues of physical health.