Each axon is insulated by a myelin sheath, which acts as an insulator. The better the insulation, the more efficient the message is transmitted. And that transmission system is vitally affected by good diet. . Your brain also needs the right type of energy to produce chemical-flows which impact on the electrical messages being transmitted around the brain and the body. And these neurotransmitters in turn depend on a balanced diet, one that includes plenty of protein. .
Iron deficiency is a major cause of poor mental performance.
And Brian and Roberta Morgan, in the excellent book Brain Food, recommend a diet rich in lecithin to help improve memory. Foods rich in lecithin include peanuts, soya beans and wheatgerm. Potassium is another highly important dietary ingredient, supplied by bananas, oranges, apricots, avocados, melons, nectarines and peaches. . In the world's best-selling book in 1999 The Learning Revolution Gordon Dryden and Dr. Jeannette Vos include a major section on diet, at the end of their chapter entitled Meet Your Amazing Brain. Click here to read a sample chapter page.