‘I could never, ever not care for her’: how do carers know when to stop caring for those they love?

Many carers don’t even know they are carers. Barbra Williams, Dementia Australia’s director of client services, says research has shown “that there are many hidden carers who don’t know what services and support is available to them”. But he gets anxious when Marjorie is “looking really, really not well. Photograph: Dean Sewell/The GuardianTwenty-five per cent of dementia carers have been caring for more than 10 years. I keep telling people I know where the red line is, but I don’t know that I do.