Memory lapses are common and increase with age; when do they signal Alzheimer's? - washingtonpost.com: "Where did I park my car?
What is that lady's name?
Where are my glasses?
Some call these 'senior moments' or 'tip-of-the-tongue' experiences. They're mundane for many elderly (and not-so-elderly) adults, but when do they become something more serious? How does one know when it's time to get screened for a memory disorder?"