Neuronutrients-mentally helpful vitamins, minerals, fatty acids, amino acids and trace elements-offer an exciting key to keeping mental functions from succumbing to the degenerations of aging and disease. According to Dharma Singh Khalsa, MD, author of Brain Longevity (Warner Books) and an energetic campaigner for mental fitness through nutrition and exercise, vitamin E "can not only prevent deterioration of the brain, but actually reverse an important element of deterioration." Dr. Khalsa describes vitamin E as one of the most potent antioxidants, a fighter of the electrically charged free radicals that attack and break down cell membranes and nerve endings. Lester Packer, PhD, professor of molecular and cell biology at UC Berkeley, told a joint 1996 United Nations-World Health Organization conference on Aging that "there is a growing body of evidence indicating that the free radical theory of aging and aging-related disease is valid," and that dietary and supplemental antioxidants can help fight illness and mental deterioration. Vitamin E and other memory aids are believed to protect brain chemicals called neurotransmitters, "the ferrymen of the brain's communication system," that influence concentration and memory. Experts say that sustaining the level of these nerve chemicals in the brain can potentially improve all mental processes.

 

"Your brain is intricately bound up with your physical state of well-being and is, therefore, vulnerable to any kind of physical abuse, especially that of chemical or substance abuse," report Thomas H. Crook III, PhD, and Brenda Adderly, MHA, co-authors of The Memory Cure (Pocket Books). Too much alcohol, for example, commonly causes progressive mental decline, according to Secrets of the Superyoung (Villard) by David Weeks and Jamie James. The authors also point out that "the memory tends to worsen noticeably after 15 years of alcohol drinking, and much sooner in people who go on massive binges."

"The effects of cigarette smoke are subtler because the poisonous effects of carbon monoxide in each puff are temporarily offset by the alerting effects of the nicotine," they add. Can't remember the name of that singer cavorting in a music video? Tests have shown that smokers are worse at connecting peoples' names to their faces than nonsmokers.

A first step in beginning your brain-boosting regimen consists of intensified intellectual activity, insists Rebecca Rupp, writer of Committed to Memory: How We Remember and Why We Forget (Crown): In Keep working: The mental challenges and social interactions of a job prevents lapses in the brain's synapses.

In Learn something new: A second language, musical instrument, or unique puzzles and games keep neurons working like new.  In Turn off the TV: Read. Studies show that passively watching TV requires less concentration than eating cereal. Mental rejuvenation also requires physical activity. Exercise increases oxygen flow to the brain, which supports memory, concentration and cognition. One study has shown that exercise significantly brightened the moods of middle-aged and older women, regardless of whether they were pre- or post-menopausal, with or without hormone replacement therapy.

Borrowed from Chinese folk medicine, Huperzine A (HupA) recently has attracted attention from researchers who credit it with enhancing cognitive function and helping folks suffering from disease-related dementia. HupA is an extract of the club moss Huperzia serrata and has been used for centuries in China to treat fever, inflammation and, most recently, dementia. Dr. Alan Kozikowski, professor of chemistry in the neurology department at Georgetown University's Drug Discovery Program, a researcher who first synthesized HupA and studied it extensively, reported in the Journal of the American Medical Association (JAMA, 277 (10):776-March 1997), that HupA is safe, having been used to treat 100,000 people in China. HupA basically protects the brain from free radical damage (due to low levels of antioxidant defenses) and maintains or enhances crucial neurotransmitter action. More specifically, HupA helps reduce the breakdown of acetylcholine, the vital neurotransmitter, and makes this substance more bioavailable. In addition, HupA helps make choline accessible to the brain for the synthesis of acetylcholine, according to a study in Neuropharmacology (30, 1991: 763-768).

Normally, the brain manufactures sufficient levels of the chemical phosphatidylserine, a lecithin-derivative that helps boost neurotransmitter release, but deficiencies of vitamin B12 and folic acid, or of essential fatty acids, may retard that production. Low levels of phosphatidylserine in the brain are related to impaired mental function and depression in the elderly. Scientists reporting in Aging (5, 1993; 123-33) describe "good results" using phosphatidylserine in the treatment of age-related cognitive ills.

Researchers also have demonstrated that Ginkgo biloba extract (GBE) increases brain function mostly by boosting acetylcholine receptors and the transmission of nerve impulses, with no significant adverse reactions. GBE is effective not only for folks with Alzheimer's; it also helps when mental function is impaired by vascular deficiencies or depression. Keep in mind that experts believe that GBE requires about 12 weeks of supplementation to reach optimal effectiveness.

Another ingredient in what seems like an alphabet-soup of brain nourishment is DHA (docosahexaenoic acid), an omega-3 fat essential for normal brain function. Researchers met recently at The New York Hospital-Cornell Medical Center's Nutrition Information Center to discuss "Keeping Your Brain in Shape: New Insights into DHA." Their findings revealed links between low levels of DHA and Alzheimer's, depression, memory loss, attention-deficit/hyperactivity disorder (ADHD) and certain behavioral traits including aggression and hostility.

Since so much of the brain is fat, material like DHA forms the building block of brain tissue and the primary structural fatty acid in its gray matter. Although it is critical for mental and visual well being, the average American's consumption of DHA has declined since we're eating less of DHA's dietary sources: animal organ meats and eggs. Researchers from the National Institutes of Health point out, however, that fish is an excellent dietary source of DHA. In their studies, they discovered that depression rates in Japan and Taiwan, where fish ranks a top spot on the menu, are significantly lower than in North America and Europe.