Research has revealed that solving brainteaser puzzles on a regular basis keeps the neural network in good health. The puzzles make the neurons work harder than usual, and as a result those absorb more protein from food. This in turn makes the neurons strong and resistant to the natural aging process. It is like a workout session, for the brain.

Brainteasers are available quite easily on the internet. About .com has a great section of optical illusion puzzles that anyone can try to solve. There are optical illusions, ambigrams (images that when turned upside down show a different image), spot the difference challenges, and much more. These puzzles do better then simply teasing the brain; these also help to maintain good visual acuity all the way to a ripe old age. That, coupled with the benefit of maintaining sense of logical reasoning, makes these puzzles perfect for people of all ages.