About dementia

Since 2001, death rates from heart disease and stroke have halved for both males and females.
Over the same time period deaths from dementia  have increased by 60% in males and have doubled in females. This partly reflects the fact that the population is ageing and that two-thirds of deaths now occur among those aged 75 and over, but also an increased awareness of dementia.
Dementia is not a specific disease but an umbrella term used to describe symptoms associated with a decline in memory and/or cognitive skills, severe enough to reduce a person's ability to perform everyday activities.
Alzheimer's accounts for 60 to 80 percent of cases.  Vascula dementia which  usually occurs after a stroke, is the second most common dementia type.

It is worth noting that there are other conditions that can cause symptoms of dementia, including some that are reversible, such as thyroid problems and vitamin deficiencies and even a urine infection!

Dementia is not a normal part of ageing.