Alzheimer''s disease is a progressive neurodegenerative disease affecting memory and thinking and making the person increasingly dependent on others.
Ageing is referred to the accumulation of changes that brings a person closer to death.
Taller men are at a lower risk of developing dementia in old age, even when cognitive reserve and family genetics are taken into account.
Nearly a third of old age dementia can be prevented and physicians and policymakers alike should address modifiable risk factors and enforce policies that help prevent the decline of brain function.