Thinking is a biochemical process. For brain cells to communicate effectively with each other to create neural pathways, they require chemicals called neurotransmitters. Neurotransmitters are the 'messengers' carrying messages from neuron to neuron.
Neurotransmitters are made from amino acids found in protein foods e.g., meat, fish and cheese.
Vitamins and minerals are needed to convert ordinary amino acids into these powerful neurotransmitters.
Neurotransmitters are found in the food we eat, hence why some foods are called 'brain foods'.
the womens health:
Increase Water Intake - Given that your brain is about 80 percent water, the first rule of brain nutrition is adequate water to hydrate your brain. Even slight dehydration can raise stress hormones which can damage your brain over time. Drink at least 84 ounces of water a day. It is best to have your liquids unpolluted with artificial sweeteners, sugar, caffeine, or alcohol. You can use herbal, non-caffeinated tea bags, such as raspberry or strawberry flavored, and make unsweetened iced tea. Green tea is also good for brain function as it contains chemicals that enhance mental relaxation and alertness.
the brain center:
Nutrition influences brain function in a variety of ways. The brain disturbances of an alcoholic, unstable diabetic, pellagra victim, or elderly patient with vitamin B12 and/or folic acid deficiency are all recognized examples of nutritional mental illnesses. Vitamin deficiency is always a concern with brain dysfunction, and the risk of deficiency increases as mental disorder increases. B-vitamins play a critical role in brain function. Vitamin B12 deficiency is a notable cause of numbness, tingling, incoordination, and impaired cognitive function. Niacin deficiency presents as dementia, dermatitis, and diarrhea. Thiamine deficiency causes cognitive dysfunction and is fully expressed in malnourished alcoholics as Wernicke's psychosis. Vitamin-mineral supplementation is always a desirable component of nutritional therapy, although high doses of individual nutrients are only desirable in acute deficiency states.
books about nutrition for the brain and brain-building-nutrition