If a gene is detected that is responsible for psychiatric diseases, how is it treated? How can we prevent it from being expressed?

Is it true that antipsychotic drugs can produce Parkinson's disease in the long run?

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

If families initiate treatment, why is it so difficult to involve them in an intervention?

My brother, who suffers from schizophrenia, has gained a lot of weight due to his meds. Any recommendations other than exercise and diet?  

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

What percent of Down's Syndrome patients develop Alzheimer's?

Please define residual schizophrenia. What are the symptoms? Are there any known treatments for this condition?

Is it beneficial or destructive for mentally ill patients to be surrounded by others with the same or other mental disorders?

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