I don't know if anyone else has noticed this, but in almost every book I pick up lately a major character has an ailment of some kind: Parkinson's Disease, Alzheimers, Blindness, Deafness, brain disorders, cancer and their kids have autism, Downs Syndrome, aphasia, mental illness.
Is this because the reading audience is getting older and both the writers and readers are affected by such ailments? Or was it always like this and I missed it?
I am not really talking about characters that are victims of crime, but ones that are victims of physical ailments and disabilities. What ails us?