What is listed as the leading cause of death in older adults in the material?

• A. Alzheimer's
• B. Vascular disease
• C. Mixed dementia
• D. Lewy body dementia

Answer: (A)

The main idea is how mortality patterns are presented for aging populations in educational material. Alzheimer's disease is often listed as the leading cause of death among older adults because it is the most common form of dementia, and its progressive course makes end-of-life complications—such as infections, dehydration, malnutrition, and immobility—frequent and major contributors to mortality. In this context, many geriatrics and occupational health resources frame death in the elderly as being driven by the complications of Alzheimer’s, rather than by other conditions. While vascular disease is a major killer overall, the material focuses on dementia-related mortality patterns, where Alzheimer's stands out due to its prevalence and the serious complications it accrues in late stages. Other dementias, like mixed dementia and Lewy body dementia, are less common than Alzheimer’s, so they aren’t described as the leading cause in this setting.