Think better

1. Whole grains
Like everything else in your body, the brain cannot work without energy. The ability to concentrate and focus comes from the adequate, steady supply of energy - in the form of glucose in our blood to the brain. Achieve this by choosing whole grains with a low GI, which release glucose slowly into the bloodstream, keeping you mentally alert throughout the day. Opt for 'brown' cereals, wheat bran and brown pasta.

2. Eat oily fish
Essential fatty acids (EFAs) cannot be made by the body and must be obtained through diet. The most effective omega-3 fats occur naturally in oily fish as EPA and DHA. Good sources include linseed oil, soya bean oil, pumpkin seeds, walnut oil and soya beans. They are good for healthy brain function, the heart, joints and general wellbeing. Oily fish contains EPA and DHA in a ready-made form, which enables the body to use it easily. The main sources of oily fish include salmon, trout, mackerel, herring, sardines, pilchards and kippers. Low DHA levels have been linked to a higher risk of developing Alzheimer's disease and memory loss.

3. Eat blueberries
Evidence accumulated at Tufts University in the United States suggests that the consumption of blueberries may be effective in improving or delaying short term memory loss.

4. Eat more tomatoes
There is good evidence to suggest that lycopene, a powerful antioxidant found in tomatoes, could help protect against the kind of free radical damage to cells which occurs in the development of dementia, particularly Alzheimer's.

5. Add vitality with vitamins
Certain B vitamins - B6, B12 and folic acid - are known to reduce levels of homocysteine in the blood. Elevated levels of homocysteine are associated with increased risk of stroke, cognitive impairment and Alzheimer's disease. A study of a group of elderly patients with mild cognitive impairment found that after two years of intervention with high doses of B6, B12 and folic acid there was significantly less brain shrinkage compared to a subset given placebo treatment.

6. Pick up pumpkin seeds
Just a handful of pumpkin seeds a day is all you need to get your recommended daily amount of zinc, vital for enhancing memory and thinking skills.

7. Eat broccoli
It is a great source of vitamin K, which is known to enhance cognitive function and improve brainpower.

8. Sage
Sage has long had a reputation for improving memory and although most studies focus on sage as an essential oil, it could be worth adding fresh sage to your diet too.

9. Eat nuts
A study published in the American Journal of Epidemiology suggests that a good intake of vitamin E might help to prevent cognitive decline, particularly in the elderly. Nuts are a great source of vitamin E along with leafy green vegetables, asparagus, olives, seeds, eggs, brown rice and whole grains.