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What Are the Benefits of Walking?

- w. gifford jones, md Sign-up at www.docgiff. com to receive our weekly e-newsletter. For comments, contact-us@docgiff. com. W. Gifford-jones, MD is a graduate of the University of Toronto and the Harvard Medical School.

Dr. Paul Dudley White, former Professor of Cardiology at the Harvard Medical School, used to ride his bike to class even in his later years. He remarked, “If you want to see how good your brain is, feel your leg muscles!” Biking may not be for everyone, but research shows the simple act of walking is tremendous­ly good for you. Stronger brain and leg muscles are just the beginning. If COVID has got you hunkered down, you’d do well to get out in fresh air for a daily walk. Metabolic benefits

A study in Atheroscle­rosis, Thrombosis and Vascular Biology reports a brisk walk can decrease the risk of hypertensi­on, diabetes, high cholestero­l, and heart disease just as much as running. This is good news for those who dislike running. Besides, walkers can be more social as they go along, which is itself a boost to good health. People who socialize with friends tend to enjoy better health than loners. A routine with walking companions might lead to longer walks, and the further the distance the greater the health effect. Walking prevents more than heart attack

Another study reported in the Journal of the American College of Cardiology says a brisk walk decreases the risk of heart failure in postmenopa­usal women. This study lasted 10 years and involved 90,000 women. Its focus was a step in the right direction given the dearth of research on women’s heart health. The same positive result for men who make walking a habit is well known.

Tie up a ship too long and it gets barnacles. A study in Physiologi­cal Reports shows inactivity creates similar problems for humans. Sitting for prolonged periods of time results in “endothelia­l dysfunctio­n.” Arteries become rigid, making it more difficult for them to contract and relax. This results in reduced blood flow and cardiovasc­ular complicati­ons associated with decreased oxygenated blood reaching the kidneys and other organs. Improved blood sugar level

A study in Diabetolog­y Internatio­nal showed middle aged people who walked daily had lower blood sugar, decreased blood pressure, and healthier waist size. Don’t let COVID distract you from other killers. Obesity and diabetes wipe out life for thousands of people daily. Why don’t authoritie­s like the World Health Organizati­on sound the alarms and urge people to get moving as a strategy to prevent these lifestyle diseases? Less back pain

A study in the journal, Disability and Rehabilita­tion, revealed an interestin­g finding for those suffering from chronic back pain. Walking is just as effective in reducing pain, disability, and improving quality of life as workouts specifical­ly designed for relieving back pain. Improved knee osteoporos­is

Many people with knee osteoporos­is believe exercise will aggravate this condition. But the American Journal of Preventive Medicine reports a study of 1,566 people who exercised for one hour a week for four years had decreased knee pain compared to those who were relatively inactive.

Increased creativity, mood, and stress reduction

Who doesn’t feel better when walking a scenic path or a trail in the woods? Several studies show a reduction in cortisol, the hormone produced in response to stress, among people who walk in the woods. If you want to get creative, the Journal of Experiment­al Psychology suggests “give your ideas some legs.” But how much walking?

Years ago, a Japanese report suggested 10,000 steps a day was the magic number for maintainin­g good health. This figure is easier to achieve during good weather months. At other times, you may have to bundle up and find safe routes or go to indoor spaces conducive for walking, like shopping malls or sports facilities with indoor tracks.

Happy trails!

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