Which of the following is considered a common mental illness in the elderly?

Depression is considered a common mental illness in the elderly for several reasons. A significant factor is that older adults often experience various life changes that can contribute to feelings of sadness and isolation, such as the loss of loved ones, health decline, and social disengagement. These experiences can lead to depression, which can manifest itself differently in older adults compared to younger populations, sometimes being mistaken for normal aging or other health issues.

Additionally, depression in the elderly can be underrecognized and undertreated, further complicating the issue. It's crucial to address this mental health concern as it significantly impacts the quality of life and can exacerbate physical health problems. Understanding the prevalence and presentation of depression among the elderly population is fundamental for caregivers and healthcare providers to ensure they receive appropriate support and treatment.