Sons: Caring for Dad with dementia is 'heartbreaking'
4 February 2014 Last updated at 16:04 GMT
Tom Wright was aged 56 when he was diagnosed with early onset dementia seven years ago.
Since then his sons Ben, 21 and Nick, 28 have had the "heartbreaking" task of caring for him full-time.
Reporter Rowan Bridge visited the family at home for the BBC Radio 5 live's Victoria Derbyshire programme.
Nick and Ben explained their daily routine, and described how their father had become "a shell of the man he used to be."