Are mental illnesses less frequent in "primitive societies"? What about suicide and anorexia, in particular?

Somebody I know has been diagnosed as bipolar II. Could it be a misdiagnosis?

Is there a connection between depression and sleep apnea? If so, what is it?

Why study sleep in relation to ADHD?  

Why is a seriously ill person—with schizophrenia for example—not forced to take medication, but allowed to "opt out" of medication and live a disastrous life?

As a mental health specialist, do you believe that more and more people are developing mental illnesses? If so, why do you think this is?

Is there a possible passive vaccine for Alzheimer's? (Antibodies directed against the protein found in the senile plaque)

The study is a process of detailed interviews that allow the team to develop an understanding of someone’s entire life story. For this reason, some participants might be interviewed more than once. This study is unique in that it will give the team a much better understanding of the factors contributing to one of Nunavut’s most urgent social problems – its high suicide rate. The only way we can learn more is if many Nunavummiut agree to participate.

Is there a certain time during foetal development that can be associated with dopamine inbalance?

Why do we stop listening (concentrating) after a long period of time—for example in class?