Single mother Erin determined to beat early onset dementia

We think dementia is a disease for the elderly - your typical patient isn't in their 20s.

They're not single mums with eight-year-old daughters.

And yet that is the situation Erin Kelly, 29, is staring down, but determined to beat.

If she does she could rewrite how we treat one of the cruellest and most common diseases in the country.

Watch the full story in the video above.