By Dr. Robert Goldman & Dr. Ronald Klatz
Longevity News and Review provides readers with the latest information in breakthroughs pertaining to the extension of the healthy human lifespan. These news summaries are compiled by the American Academy of Anti-Aging Medicine (A4M; www.worldhealth.net), a non-profit medical society composed of 26,000 physician and scientist members from 120 nations, united in a mission to advance biomedical technologies to detect, prevent, and treat aging related disease and to promote research into methods to retard and optimize the human aging process. Dr. Ronald Klatz, M.D., D.O., A4M President, and Dr. Robert Goldman, M.D., Ph.D., D.O., FAASP, A4M Chairman, physician co-founders of the anti-aging medical movement, distill these headlines and provide their insightful commentary.
Activity a Key Anti-Aging Investment
Marj Moodie, from Deakin University (Australia), and colleagues analyzed the daily travel patterns and incidental physical activity, such as the time spent walking to get to transport, of over 29,840 people in Melbourne. Car drivers averaged 8 to 10 minutes of incidental exercise daily, public transport users 35 minutes daily, and walkers/cyclists 38 minutes daily. People in the inner city were found to be more than six times more likely to get sufficient physical activity from travel compared with people living in the outer suburbs. The team then calculated that incidental physical activity could result in 272 less deaths per year, 903 fewer new cases of disease and savings of up to $12.2 million in the health sector and $22.9 million in lost production. The study authors urge that: “Improving population levels of incidental [physical activity] may improve health and economic outcomes.”
Dr. Klatz observes: “Methods of active transport – such as walking to catch a train to work or bicycling to errands – have vast and important benefits for the health of both an individual and society at-large. This Australian team finds that incidental physical activity resulting from everyday activity can save lives as well as health sector dollars.”
Regular Exercise Revs Up Brain Health
Tracy A. Cameron, from the University of Otago (New Zealand), and colleagues assessed a group of 52 healthy young women for the role of regular engagement in physical activity on oxygen availability in the anterior frontal region of the brain – the area involved in completing difficult cognitive tasks. The researchers observed that: “Analyses positively linked chronic physical activity level with anterior frontal oxygenated hemoglobin and cognitive inhibitory control … In addition, higher anterior frontal oxygenated hemoglobin was linked to better performance for the most difficult cognitive task.” Observing that: “regular physical activity may lead to hemodynamic and cognitive benefits,” the study authors submit that: “the current discovery of a relationship with [chronic physical activity level] may provide important insight toward understanding exercise-cognition links.”
Remarks Dr. Goldman: “This study finds that women who regularly engage in physical activity have higher oxygen availability in a region of the brain necessary for difficult cognitive tasks.”
Avocados Counter Cholesterol
Enrolling 45 healthy, overweight adults between the ages of 21 and 70 years, Penny M. Kris-Etherton, from Pennsylvania State University (Pennsylvania, USA), and colleagues tested three different diets, all designed to lower cholesterol: a lower-fat diet, consisting of 24 percent fat, and two moderate fat diets, with 34 percent fat. The moderate fat diets were nearly identical, however one diet incorporated one Hass avocado every day while the other used a comparable amount of high oleic acid oils — such as olive oil — to match the fatty acid content of one avocado. Whereas all three diets significantly lowered low-density lipoprotein (LDL; “bad”) cholesterol, as well as total cholesterol, only those on the avocado diet showed an even greater reduction in LDL and total cholesterol. The avocado diet decreased bad cholesterol by 13.5 mg/dL, while LDL was decreased by 8.3 mg/dL on the moderate-fat diet and by 7.4 mg/dL on the low-fat diet. Observing that: “Inclusion of one avocado per day as part of a moderate-fat, cholesterol-lowering diet has additional LDL-C, LDL-P, and non-HDL-C lowering effects, especially for small, dense LDL,” the study authors conclude that: “Our results demonstrate that avocados have beneficial effects on cardio-metabolic risk factors that extend beyond their heart-healthy fatty acid profile.”
Comments Dr. Klatz: “With previous studies showing a capacity to reduce a person’s risk factors for diabetes and heart disease, fresh avocados are a good source of monounsaturated fatty acids. These researchers offer evidence to suggest that consuming fresh avocados may be an effective approach to improve the lipid profile.”
Anti-aging medicine is the fastest-growing medical specialty throughout the world and is founded on the application of advanced scientific and medical technologies for the early detection, prevention, treatment, and reversal of age-related dysfunction, disorders, and diseases. It is a healthcare model promoting innovative science and research to prolong the healthy lifespan in humans. As such, anti-aging medicine is based on solid scientific principles of responsible medical care that are consistent with those applied in other preventive health specialties. The goal of anti-aging medicine is not to merely prolong the total years of an individual’s life, but to ensure that those years are enjoyed in a productive and vital fashion. Visit the A4M’s World Health Network website, at www.worldhealth.net, to learn more about the A4M and its educational endeavors and to sign-up for your free subscription o Longevity Magazine™ e-Journal.