1) What advice would you give to somedoy sufferig from a mental illness/or relative?
Depends on the diagnosis.
2) What is the most common mental disorder, Which is most researched?
Depression, though there are many types.
3) How common are mental disorders?
1 in 3 doctors appointments include a mental health element in some severity.
4) What is the most common treatment?
Talking therapy (such as CBT) and medication.
5) What is the main problem facing someone with a mental illness?
Stigma.