Mental illness and Nervous exhaustion

Mental illness noun - Any disease of the mind; the psychological state of someone who has emotional or behavioral problems serious enough to require psychiatric intervention.

Nervous exhaustion and mental illness are semantically related. In some cases you can use "Nervous exhaustion" instead a noun phrase "Mental illness".

Nervous exhaustion noun - An emotional disorder that leaves you exhausted and unable to work.

Mental illness and nervous exhaustion are semantically related. Sometimes you can use "Mental illness" instead a noun phrase "Nervous exhaustion".