Hi, I am looking for treatment for my brother. I feel he has some problem by seeing his behaviour. He is not able to concentrate and learn anything. He is always confused. Furthermore, he is doing job but not getting confidence. He is not able to convince his things. He has loss of focus, concentration issue, not confident, looks completely lost, sad, don't get excited for things and gets irritated with small issues, angry. Please help me to understand his issue, and what action I can take?