Alzheimer's is a kind of dementia that causes dilemma with memory, thinking and behaviour. This mainly happens due to the disruptions caused in nerve cells within the brain. The brains of individuals with Alzheimer disease have an abundance of 2 abnormal structures: amyloid plaques and neurofibrillary tangles that are product of misfolded proteins. This can be very regular in certain regions of the brain that are necessary for memory. Another main feature of Alzheimer’s disease is the loss of connections amidst cells. This results in diminished cell operate and necrobiosis.
Vascular dementia is slump in thinking skills caused by conditions that block or reduce flow of blood to the brain, depriving brain cells of vital oxygen and nutrients. Multiple small strokes or other conditions that affect blood vessels and nerve fibres deep inside the brain cause these accumulations to occur.