If my memory serves me correctly, our memory becomes worse as we age. And neither filling out crossword puzzles nor racking our brains over Sudoku is going to keep our ageing minds sharp, found a new study. So is there any hope in remembering who your favourite childhood superhero was or how you got that everlasting scar on your leg? Learning new, mentally challenging tasks, such as digital photography, can significantly improve our memory, according to the study. Kelvin Trautman teaches you how to Shoot Like A Pro, and sharpen your memory at the same time.