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Keeping your mind sharp

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Trying to stay sharp as you age?

Exercising your brain has become big business -- with Nintendo games and computer programs all promising to give you an edge.

But not all experts are on board.

Dr. Cotman from the University of California Irvine is part of a panel of experts that recently found there is *limited evidence cognitive activities later in life will slow mental decline.

Other experts say it depends on the *type* of activity you're doing.

For now, experts say the best way to work out your brain is to do exactly that: work out!

The evidence on exercise is more clear: a healthy body really can give you a healthy mind.

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