Just because someone has Alzheimer's, doesn't mean they can't perceive pain. They may be unable to tell people about it, though. Different tests may be needed to help find out how bad the pain is in such patients.
Apart from longevity, family history is the principal risk factor for Alzheimer disease. It is not surprising, therefore, that those with a family history of this devastating disease are anxious to know more about its genetics.
A certain amount of forgetfulness comes along with advancing age. Walking into a room and forgetting why or forgetting where you put your glasses/car keys/coat/etc is quite normal, that type of forgetfulness is normal and even happens to us when we’re young.
Alzheimer’s disease is an illness that affects cognitive functioning when an abnormal buildup of fragmented protein clusters impede neurological activates in the brain which cause memory, thinking and behavioral problems.