Playing Sudoku or crosswords may not arrest the age-related mental decline as earlier studies suggested but can boost mental ability over a lifetime shows a research. The new study challenged previous studies that suggested mental agility can be maintained or improved by exercising the mind with such brain teasers. Led by a team from the University of Aberdeen in the UK the study found that such activities had no effect on the rate of mental decline associated with ageing. However regularly engaging in intellectual activities boosts mental ability throughout life providing a higher cognitive point from which to decline. The