A dementia sufferer's son said the disease "strips someone of their character", as Jeremy Hunt called on Britain to "raise our game" on the illness.
Pauline Murray-White's son filmed his mother's battle with the illness since she was first diagnosed in 2007 and captured the moment she struggled to recognise a picture of her late partner.
James Murray-White said the relationships of sufferers "eventually shatter."
He added: "Dementia just strips someone of their character, their personality, who they and what they knew."
More top news
ITV News has obtained a video statement made by a former Royal Marine who was later killed fighting against Islamic State in Syria.
A recent three million year-old discovery in Eithiopia has pushed the timeline of human history back 400,000 years.
A split in conditions for the coming few days