Tired of frantically searching for your keys? Or of rushing into a room only to forget what you were looking for? If you're worried about memory lapses, just flick on the TV. There are Annie Potts, former star of Designing Women, and Hector Elizondo of Chicago Hope hawking dueling versions of the herbal supplement ginkgo biloba. Or click on the website www.braingum.com where you can read about a "delicious" supplement derived from the compound phosphatidyl serine. All offer hope for improving memory and brain function.
The graying of America has created a whole new industry aimed at people worried...