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It’s simple, just keep moving to stay healthier
The healthier and more physically fit you are, the better your chances will be to live a long and active life. While that may be true to a large extent, researchers now say that you don’t need to be a senior athlete to reap benefits from your physical condition. It may be enough to do just a little bit every day to keep you going. The rest is just icing on the cake, but it won’t make a decisive difference in how well you age.
A recent study from Sweden found that a generally active lifestyle, even without regular exercise sessions, can promote heart health and longevity. So-called “background activity,” the usual wear and tear your body undergoes as you navigate your day, has all too often been disregarded or underestimated in clinical studies on the importance of physical exercise in older people, the researchers said.
Whether someone exercises rigorously for half an hour or runs errands all day doesn’t make that much of a difference. What matters more is that there are no long periods of time sitting near motionlessly while watching television, reading, or doing work on the computer. A lifestyle that is excessively sedentary for whatever reason is the real culprit when people age badly, not only in physical but also in mental terms.
The difference in likelihood of dying from a heart attack or stroke between the most and the least active participants in the study was roughly 30 percent, which is substantial.
“These are fascinating findings,” said Dr. David Dunstan, head of the Baker IDI Heart and Diabetes Institute in Melbourne, Australia, who was not involved in the study. “But [they are] not really surprising since other studies have looked at […] the detrimental relationship between excessive sitting and mortality outcomes,” he said to Reuters (http://reut.rs/1fQaJGW) in response to the study’s publication.
What makes sitting so detrimental is that it prevents the muscles from contracting and causes decrease in blood flow, which reduces the efficiency of many body functions, including nutrient absorption, he added.
Even moderate exercise such as walking up the stairs, cleaning house, or carrying grocery bags across the parking lot can help strengthen muscles, including the most important of all, the heart muscle. For this reason, healthcare providers should encourage especially their older patients and those suffering from heart health problems not only to exercise regularly but also to sit less and move around whenever they have the chance.
Heart health is not the only concern scientists have when contemplating potential damages from lack of exercise. Prolonged sitting itself increases the risk of all causes of mortality, independent from activities like running or visits to the gym, another study (http://archinte.jamanetwork.com/article.aspx?articleid=1108810) found. Researchers from Harvard University concluded that sitting for several hours daily can contribute to chronic diseases like diabetes and certain forms of cancer, especially colon cancer in men.
People, like office workers, who have little choice but spending much of their time sitting should at least take regular breaks to walk around the building or office park to stretch their legs. Retired folks who have more control over their schedules should not sit at home reading or watching television but get out in the fresh air as often and as much as possible.
The good news is that increasing one’s activity level can be done at any stage in life. Numerous studies have confirmed that staying both physically and mentally engaged not only can extend life expectancy but also improve the quality of people’s later years. At any rate, it’s an investment worth making.
Timi Gustafson R.D. is a registered dietitian, newspaper columnist, blogger and author. For more go to www.timigustafson.com.