He wore a fedora and looked very stylish.

He bought a new fedora.

He likes to take a walk in the park at dusk.

His father was diagnosed with schizophrenia in the past.

His brother was diagnosed with schizophrenia a long time ago.

He is taking sedatives to control his stress.

He is an expert in psychiatry.

He has psychopathy, making it difficult for him to understand social rules.

My brother works as a psychiatrist.

He is known as an expert in psychoanalysis.