20 natural ways to boost your memory

Oil the machine

There's evidence galore to show that omega-3 fatty acids, found in cod-liver oil and in oily fish (such as trout and mackerel), help prevent damage to brain cells and keep your memory sharp. Aim to eat three portions of oily fish a week, and a variety of different types, says Natalie Savona, nutritionist and author of 'Wonderfoods' (Quadrille).