Health for life

Researchers from the Australian National University have shown that essential B vitamins combat stress that results in a loss of memory and normal thought patterns that cause abnormal brain aging. Publishingin The American Journal of Clinical Nutrition, scientists found that long-term supplementation of daily folic acid and vitamin B-12 promotes improvement in cognitive functioning after a period of two years, particularly in immediate and delayed memory performance.

B vitamins are crucial for nerve transmission and are needed in higher amounts as your stress level increases. Health-minded adults will want to ensure that they obtain an optimal daily dose of these important vitamins from diet or supplemental sources.

The study leader, Dr. Janine Walker and her team conducted a two year intervention among elderly participants confined in a community-dwelling environment. All participants exhibited symptoms of depression and were under moderate stress due to environmental and lifestyle conditions. The study was designed to determine if nutritional intervention could prevent cognitive decline under randomized and controlled conditions.

Researchers supplemented one group of studyvolunteers with an oral dosage of 400 micrograms of folic acid and 100 micrograms of vitamin B-12 daily. This group was compared against a control set of participants that received a placebo. The results were measured at twelve and twenty-four month intervals using the Telephone Interview for Cognitive Status Standardized Test and the Brief Test of Adult Cognition by Telephone (to determine processing speed). An Informant Questionnaire on Cognitive Decline in the Elderly was administered at two years to provide a final analysis of cognitive function.

The study authors found that the group receiving the supplemental B-vitaminsexperienced significantly better memory function when compared to the control subjects. The research team determined that stress results in inflammation to neuron structures in the brain and inhibits electrical and chemical transmissions between nerves that are required to form new memories and maintain a healthy degree of cognitive function. The body uses B-vitamins, especially folic acid and vitamin B-12 to fight brain inflammation and ensure proper brain communications.

After the two year study period, Dr. Walker concluded“Long-term supplementation of daily oral 400 mcg folic acid and 100 mcg vitamin B-12 promotes improvement in cognitive functioning after 24 months, particularly in immediate and delayed memory performance.” The entire family of B-vitamins has been shown to lower the impact of brain stress and inflammation. Health-conscious adults will want to combine a daily supply of B-vitamins with the Omega-3 fats EPA and DHA to dramatically lower the risk of memory loss and cognitive decline.

Green tea has long been hailed as a cardio-protective beverage due to its ability to lower levels of oxidized LDL cholesterol, an established heart disease risk factor. It has also been shown to promote brain health because the active compound, EGCG (Epigallocatechin gallate) freely crosses the blood-brain barrier to provide antioxidant support and lower damaging levels of brain inflammation.

Researchers from Japan reporting in the American Journal of Clinical Nutrition demonstrate that regular green tea consumption lowers the risk of developing functional disabilities that lead to problems with daily chores and activities, such as bathing or dressing. Drinking up to five cups of green tea each day can lower the risk of developing functional disabilities as we age by nearly one half.

Prior studies have determined that consuming green tea lowers the risk of diseases associated with functional disability, such as osteoporosis, cognitive impairment and stroke. To date, no formal studies have been conducted to confirm the impact of green tea consumption on functional ability. Researchers from Tohoku University Graduate School of Medicine in Japan modeled this study to affirm the positive results associated in the past with drinking green tea.

To design this research work, scientists handed out questionnaires to nearly 14,000 respondents aged 65 or older. The participants answered questions about general diet, green tea consumption and lifestyle. After a period of five years, researchers were able to find a close inverse link between functional disability risk and the consumption of green tea. Higher intake of green tea was associated with a dramatically lower risk of functional disability in the group studied.

The research team concluded that nearly13% of the participants consuming the lowest amount of green tea (one cup or less each day) developed moderate to severe degrees of functional disability. By contrast, only 7% of those consuming the highest amount of green tea (5 cups or more each day) were classified with any degree of functional decline. The highest level of green tea consumption was shown to cut the risk of functional and cognitive decline by close to one-half.

The researchers noted that those consuming five or more cups of green tea each day also ate more fruit and vegetables, consumed more fish, were less likely to smoke, had fewer strokes or heart attacks, and tended to have a higher level of education. Improved dietary and lifestyle considerations are synergistic factors that compliment green tea consumption and likely contribute to the positive results in this study. Health-minded individuals already follow strict dietary principles to maintain brain health and functional abilities. Drinking 5 or more cups of green tea each day are shown to boost the healthy benefits associated with proper nutrition and lifestyle.

Many factors are known to contribute to human lifespan. Many natural health followers caully control their diet to include organic choices of fruits and vegetables in their natural, uncooked state, while remaining physically active and maintaining body weight within a healthy range. The science of how lifestyle habits and nutrition promote health and longevity, known as Epigenetics, has dramatically advanced our knowledge base by providing a solid understanding of telomeres, the tiny strands of DNA akin to a zipper that shorten with poor dietary choices, inflammation and everyday stress.

Researchers reporting in The Journal of Nutritional Biochemistryshow that reducing oxidative stress, cellular inflammation and improving DNA methylation pathways can extend telomere length and slow the biologic aging clock. Specific nutrients provide the necessary building blocks to support DNA health and extend your natural lifespan.

Genetic expression is not set in stone, and our genes are continually under the influence of our environment, lifestyle and dietary choices. Gene settings are made initially from our time in the womb, based largely on the nutritional status and lifestyle of the mother. As we age, our genes instantly read micronutrient and environmental cues in an effort to ensure short term survival. Every morsel of food energy we consume results in an alteration in gene expression, either promoting optimal health or eventual illness.

The methylation pathway is critical to maintain DNA integrity and prevent telomere shortening. Foods and nutrients that donate methyl groups are essential to prevent genetic mutations that result in cancer. Researchers reporting in The Journal of Nutrition found that men with the highest levels of folate in their blood have the longest telomeres when compared to those with the lowest levels. In addition to folate (800 mcg each day), vitamin B12 (500 to 1000 mcg daily) and the entire B-vitamin family are associated with longer telomeres. Sulfur-enriched proteins from nuts and seeds are also important methyl group donors.

Independent researchprojects have concluded that the minerals zinc (25 to 50 mg per day) and magnesium (400 to 800 mg each day) are necessary to accurately complete DNA sequencing during cell replication. A lack of these cofactors leads to DNA strand breakage, premature cell destruction and acceleration of the aging process. Vitamin C (1 to 3 grams per day) has been shown to slow the loss of telomeres in human vascular endothelial cells, an important element in preventing cardiovascular disease. Vitamin E tocotrienols (400 mg per day of a full-spectrum supplement) have been shown to restore the length of telomeres while reducing DNA damage, making it possible for a nutrient to reverse the shortening of telomeres and reverse an underlying cause of aging.

Stress and inflammation are two controllable factors that independently shorten telomere length and increase cell aging. Stress management is essential to lower the release of chemical messengers that fuel the flames of inflammation. Additionally, researchers have identified a host of polyphenol compounds (resveratrol, grape seed extract and curcumin) that lower systemic inflammation, help to maintain telomere length and extend healthy lifespan.