1. Your blood sugar is high. Memory lapses may be in your blood -- or, more specifically, in your blood sugar. MRI scans of volunteers' brains suggest that high blood sugar might damage parts of the brain that deal with memory.
Protect yourself: If there's a history of high blood sugar or diabetes in your family, have your blood sugar tested regularly. Eat well and stay active -- brisk walks are an effective diabetes preventive.
Why you should Donate!