Please don't listen this frequency more than 45 seconds at a streach without the guidance of an expert or professional. Morning & Evening are the best time to listen. Alzheimer's disease is a progressive neurodegenerative disorder that primarily affects memory, thinking, and behavior. It is the most common cause of dementia, accounting for 60-80% of dementia cases. The disease typically begins with mild memory loss and confusion but worsens over time, leading to severe cognitive decline and an inability to perform daily tasks.