0_Apprentice
I recently found out my friend has a mental disorder and I'm not sure what to think about it. I'm looking for information on how I can help her!
1_Wizard
Was she properly diagnosed by a professional? Such disorders need to be diagnosed by a mental health professional.
0_Apprentice
Yes, she was. What do you think causes people to experience mental disorders?
1_Wizard
Sadly, the cause of having a mental disorder are sometimes unclear. There are so many factors involved.
0_Apprentice
Oh, I see. What are some treatments for mental disorders? 
1_Wizard
The first step would be to get an assessment done somewhere like a psychiatric hospital by a psychiatrist, psychologist and/or a clnical social worker. There are psychometric tests that can be done, or simple observation and questioning.