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Don't Just Sit There, Do Something! Part 4: Thoughts on current medical literature & news as it pertains to optimizing our health. July 24, 2011
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Alvin B. Lin, MD, PLLC About the Author
Alvin B. Lin, MD, PLLC

Provided by My 2 Cents

Just last week
, I commented on a new study demonstrating how to lower our collective risk for Alzheimer's disease.  Besides stopping tobacco use and improving educational attainment worldwide, the study noted that physical inactivity accounted for the majority of Alzheimer's disease here in the States.

At the same time, two studies were released early online in Archives of Internal Medicine documenting similar conclusions.  In the first analysis, 2,809 participants average 72yo with known heart disease in the Women's Antioxidant Cardiovascular Study (WACS) were questioned regarding physical activity every two years while cognitive function was assessed 4 times over 9+years.  Those who engaged in the highest quintile of physical activity, equivalent to daily brisk walking for 30 minutes, had slower loss of cognitive decline, comparable to being 5-7 years younger.

In the second study, 197 participants average 75yo in the Health, Aging & Body Composition (Health ABC) study had their total body energy expenditure (TBEE) and resting metabolic rate (RMR) measured along with cognitive function.  Consistent with the more typical self-reported physical activity, the higher one's objectively measured active energy expenditure (AEE=TBEE-RMR), the the lower one's risk for cognitive impairment.


The editorialist commented that ongoing maintenance of physical activity is a worthwhile recommendation for all our patients as we age.  I have yet to read about a downside to physical activity that outweighed the benefits gained.  So let's get out there and do something!  Go set a better, more active, example for our patients.

Alvin Lin
After 17 years in Northern California, I headed south where I graduated with a Bachelor of Science in Biology from the University of California, Riverside, in 1984 and promptly entered the private sector.  A glutton for punishment, I returned for post-baccalaureate studies in Computer Science in 1987 after which I earned my Doctor of Medicine in 1991 from the Bowman Gray School of Medicine at Wake Forest University.  Love called & romance blossomed, so I returned to the San Francisco Bay Area where I completed my Family Medicine residency at Merrithew Memorial Hospital at the University of California, Davis School of Medicine in 1994.
After 3 years wandering around the country as a locum tenens physician and collecting a dozen state licenses along the way, I was feeling rather masochistic once more.  So I applied for subspecialty training, completing my Fellowship in Geriatrics at the Brody School of Medicine at East Carolina University in 1998. I joined the faculty as an Assistant Clinical Professor in the Department of Family Medicine and was appointed Director of the Ambulatory Geriatric Center in Greenville, NC. In 2003, I was recruited by Cenegenics Medical Institute to build it into the ubiquitous presence it is today in your airline inflight magazines. After 7 years as an employed physician, I left to return to my family medicine & geriatric roots by developing a small private practice which this website represents.
I have served as a Clinical Assistant Professor in the Department of Family and Community Medicine at the University of Nevada, School of Medicine since 2004 and recently became an Adjunct Assistant Professor of Family Medicine & Geriatrics at the Touro University Nevada College of Medicine.  Along the way, I have written many articles, given many presentations, and made myself available to both patients and colleagues.  I plan to continue more of the same (but without the middle-man!).  For more information, go to and

The viewpoint expressed in this article is the opinion of the author and is not necessarily the viewpoint of the owners or employees at Healthcare Staffing Innovations, LLC.
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