Barking has one of the lowest proportion of people with dementia than any other area in the UK.

Figures from Alzheimer’s Research UK show that 0.66 per cent of those living in the constituency have dementia - or, in real terms, 887 people.

The borough’s other constituency, Dagenham and Rainham, was higher, with 1.14pc of people there having the condition - equating to 1,228 people.

The areas with the highest prevalence typically have between 1,500 and 2,700 people suffering dementia.

Christchurch in Dorset has the most, with 2.81pc, with nearby New Forest West close behind with 2.65pc.

Dr Matthew Norton, director of policy at Alzheimer’s Research UK, said: “Dementia is our greatest medical challenge and with our ageing population, the number of people affected by this devastating condition is only going to rise.”