I. Introduction
Globally the prominent cause of dementia is Alzheimer's disease (AD), a progressive degenerative neurological ailment that causes the brain cells to gradually deteriorate. Early signs of AD include forgetfulness and inability to recall recent incidents. Additionally, as the illness worsens, it affects every aspect of cognition, ultimately rendering the patient wholly dependent on others for even the most fundamental activities of daily living [1]. There may be up to 55 million Alzheimer's patients globally, and it's predicted that figure will rise by 10 million per year. AD is commonly observed in old age. If left unchecked, it cause serious impact on future as world age increasing,