Recently a friend asked me what to do about someone that he suspects has bipolar. It was not someone I knew and as he was back in his home country, I could only give some pointers over Facebook message.
Firstly, I asked him to read up about the condition, especially how to recognise possible symptoms. That’s the easy part. The difficult part comes when deciding if, when and how to approach the topic. Often people can be in denial, or because of stigma, they can react strongly against suggestions that they have a mental health issue.