Twitter discussion with Awais Aftab led to a previous post about the aetiology of mental disorder. We may have got a bit bogged down with our different views about the biological, psychological and social foundations of mental health problems. But possibly there might be more agreement about dividing factors in the causation of mental disorder into predisposing, precipitating and perpetuating factors. Still, Kenneth Kendler's article on the causes of mental illness didn't really do this (see another previous post). Perhaps Awais can write a better paper than Kendler on the factors in the causation of mental illness.