Gabe Mirkin, M.D.
Dr. Todd Manini of the National Institute on Aging reports
that older active people who walk, climb stairs, do household
chores, or even wash windows are 69 percent less likely to die in
a year, compared to people who are far less active (JAMA, June
2006). This study was far more dependable than previous
studies because, instead of using a questionnaire, researchers
measured how active a person was by measuring the metabolic
end products of activity. They used a doubly-labeled water
method that directly measures carbon dioxide production over an
extended period, the most accurate estimate of energy
expenditure.
If you are inactive, you should check with a cardiologist
who will do a stress test. If you pass, you should start an
exercise program. If you fail, you should work with your doctor to
correct the problem and then start an exercise program.
September 15, 2006