How old is too old to work?

Researchers have learned that there is no ideal retirement age and that older adults who keep their thinking skills sharp by learning new things off the job can stay more competitive in the job market, too.

What we find now from research and a neurological perspective is [that] the secret to good aging is, you have to keep busy. Sometimes that means exercise, physical activity. But it means a lot of mental and cognitive activity.

Older adults frequently retire from one career and transition into another -- something that's matched to their skills and experience and takes into account any age-related disadvantages. Focus on what work can you do that you can keep up with as you age.