Study Finds 4 Things That Keep Old Minds Sharp

From Live Science:

Some people seem to be able to keep their wits well into old age. But what's their secret?

New research reveals a host of factors that may contribute to a sharper mind late in life, including exercise, education, non-smoking behavior and social activity.

While other research has shown that genetics play a role in whether people get dementia, the study adds to a growing body of research that is uncovering ways you can up the odds of keeping your brain healthy and your memory sharp now and later.

The study tested the cognitive ability of 2,500 people aged 70 to 79 over eight years. More than half of the subjects showed normal age-related decline in mind function and 16 percent had a considerable decline during the course of the study. But 30 percent of participants did not show a change in their cognitive skills, and some even improved on the tests.

The researchers then looked to see what could account for this difference.

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