46+ Inspirational Quotes Recovery Mental Illness. Sometimes all it takes to turn your day around is an encouraging word. What are the causes of mental illness? Although the exact cause of most mental illnesses is not known, it is becoming. Mental illness, also called mental health disorders, refers to a wide range of mental health conditions — d. Kate kershner we don't know what causes mental illness. Everyone has bad days once in a while, and sometimes, all it takes is a kind or supportive word to help you snap out of the funk. Mental illness is a broad term, but are its causes equally broad? Like physical health, mental health — being able to think, feel, and act in ways that e. But being chronically ill while maintaining a pleasant disposition is a daunting task even. Being sick is no fun.