What is mental illness in psychology

What is mental illness in psychology. Mental illness is psychology, psychology wouldn’t even exist if there wasn’t such thing as a mental illness, back in the 1800s they didn’t even consider a person with a mental illness actually ill, the family would try to hide the fact that their members have some sort of mental defect because they didn’t understand what mental illness actually was, the field of psychology was introduced simply because there was a need to diagnose this condition. The founders of this field started doing research and looking into the contributing factors to various mental illnesses, the research that they’ve done created the field known as psychology, without the field of psychology those that suffer from various different mental illnesses would never get the proper help and assistance that they need, this field has helped millions of families if not billions of people across the world.