The Alzheimer’s disease is a condition, in which the nerve cells of the brain steadily die and results in improper functioning of the brain. It can be classified into 3 types, namely early-onset Alzheimer’s, late-onset Alzheimer’s and familial Alzheimer’s disease and the symptoms differ at every stage. The initial symptoms are related to memory, judgment, and thinking, like short term memory loss, instant and unpredictable changes in mood, unable to perform familiar tasks and disorientation. The middle stage symptoms are related to memory loss, like hallucinations, difficulty in the regular routine and also acts as angry or suspicious. And the last stage symptoms are related to dementia, like unable to communicate or recognize people also walking and swallowing.