For a man lots of responsibilities and poor source of income can result to depression, also lack of peace in his matrimonial home too can cause depression. For ladies it can vary Some could be body shaming, others lack of contentment, some relationship and abusive homes. Depression is one thing no one should ever wish for during my undergraduate days I got depressed when I could not afford my school fees and it got worst when the deadline came and I wasn't able to pay which I ended up repeating a full session. I got depressed it almost took my life but I am grateful to God almighty who helped me scale through that tough time.