Because of the global population ageing, the number and burden of strokes will increase.

BBC: Drug 'may prevent stroke damage'

But this latest edition of the American Psychiatric Association's Diagnostic and Statistical Manual, or DSM-5, will only make a bad situation worse because it will lower many diagnostic thresholds and increase the number of people in the general population seen as having a mental illness.

BBC: 'Grief and anxiety are not mental illnesses'