Hello, thanks for taking the time to help out. Recently, I ve noticed my 16 year old brother having issues. Mentally challenged issues. I tried to teach him how to put in contacts, and noticed how frustrated and how easily he gave up. He s sensitive, so if you get mad at him he will cry. He has very good social skills. Back when he was about thirteen or so he was diagnosed with an abandonment disorder. I do not think this is the only issue and am very concerned for him. He has anger issues, and gets easily frustrated. My father is bipolar, and has miss-personality disorder along with other mental illnesses. Could any of this be hereditary? Any ideas for what it is? I know it s difficult to diagnose someone without knowing things, but if you could give me a couple ideas, it would be much appreciated. Thank you.