Dear student.
Alzheimer is not a deficiency disorder.
Alzheimer is a neurodegenerative disease, where neuron of our brain degenerates, due to the accumulation of a peptide. Alzheimer's diseases is a progressive, degenerative disease of the brain that leads to dementia affecting memory, thinking in older people. Scientists believe that for most people, Alzheimer's disease results from a combination of genetic, lifestyle , age and environmental factors that affect the brain over time.
Regards.