Many people often group Alzheimer’s and Dementia together but they are two independent diseases.
Check out the following article taken from Donald Sostek, the Director of Sostek Home Care’s Alzheimer’s Information Presentation!
The Definition of Dementia
Dementia is a serious loss of cognitive ability in a previously unimpaired person, beyond what might be expected from normal aging.
Well into the second half of the 20th century, dementia of the elderly was called senile dementia or senility and viewed as a normal aspect of growing
old rather than as being caused by any specific disease.
Dementia is a non-specific illness syndrome (set of signs and symptoms) in which affected areas of cognition may be memory, attention, language, and
problem solving. It is normally required to be present for at least 6 months to be diagnosed.
Causes include many different specific disease processes, however Alzheimer’s disease accounts for as much as 70% of all the dementia-related disorders.
How does AD differ from Dementia?
Alzheimer’s disease is a type of illness characterized by a progressive loss of memory and other cognitive functions. This includes loss of ability to carry out routine daily activities,self care and even social graces.
● Brain Anatomy and Functioning
○ Cortex, involved in thinking, planning & remembering
○ Hippocampus, area with a key role in forming new memories
● Each person is an individual
○ Some individuals may become anxious or aggressive, others may repeat certain questions or gestures.
Alzheimer’s tissue has many fewer nerve cells and synapses than a healthy brain
● Plaques, abnormal clusters of protein fragments, build up between nerve cells
● Dead and dying nerve cells contain tangles, which are made up of twisted strands of another protein
Scientists are not absolutely sure what causes cell death and tissue loss in the Alzheimer’s brain, but these plaques and tangles are prime suspects






