Which degenerative brain disorder accounts for a majority of memory disorders and dementia cases?

Alzheimer's disease is the most prevalent degenerative brain disorder associated with memory impairment and dementia. It is characterized by progressive cognitive decline, which significantly impacts memory, thinking skills, and ultimately the ability to perform daily activities. The disease primarily affects older adults and is marked by the presence of amyloid plaques and neurofibrillary tangles in the brain, leading to neuronal loss and brain atrophy.

Alzheimer's is responsible for approximately 60-80% of dementia cases, making it the leading cause of memory disorders. This prevalence showcases the critical need for awareness, research, and treatment options for Alzheimer’s due to its wide-reaching effects on cognitive function and quality of life for individuals and their families. Other conditions, like Parkinson’s disease, Huntington’s disease, and multiple sclerosis, may contribute to cognitive decline but do not account for the majority of dementia cases like Alzheimer’s does.