What are some common atypical presentations of depression in older adults according to the chapter?

Common atypical presentations of depression in older adults include anorexia, vague abdominal complaints, new onset of constipation, insomnia, hyperactivity, and a lack of sadness.

In older adults, depression may not present with the typical dysphoric mood often seen in younger individuals. Instead, it can manifest through physical symptoms such as anorexia and vague abdominal complaints, as well as behavioral changes like new onset of constipation, insomnia, and hyperactivity. Notably, older adults with depression may not exhibit the expected sadness, making diagnosis more challenging.