OUR ADDICTION to our chairs and sofas isn't just hurting us, it's literally killing us. The problem is so profound that it has spawned the meme, "sitting is the new smoking." It's a meme that the National Institutes of Health does not recommend as it promulgates direct comparisons of the health consequences of sitting and smoking. But the threat of prolonged sitting to our health and survival does exist and the more so because it's able to hide in plain sight. Sitting passively on the chair or on the sofa is assumed to be our normal resting position and until results of these research studies came out, we were in the dark about the harmful health consequences of our "addiction."
A great number of research studies by Mayo Clinic, Harvard Health
and other prestigious research centers has linked prolonged sitting or other
sedentary behavior to diabetes, poor heart health, weight gain, depression,
dementia, and multiple cancers.
These studies show that the body has all kinds of negative
reactions to sitting long periods. Prolonged sitting distorts human
biochemistry so profoundly as it alters the normal function of blood vessels:
blood flow to the legs is decreased and the body's sugar regulation and blood
pressure are greatly impacted. A sedentary lifestyle that has been dubbed the
"sitting disease" can lead to diabetes, heart attacks and several
forms of cancer. One explanation is that prolonged sitting relaxes the largest
muscles and when these muscles relax, they take up very little sugar ( glucose)
from the blood, raising the body's risk of developing type 2 diabetes.
Studies have examined whether the
health effects of sitting can be attenuated by physical activity.
As far as our biochemistry is concerned, moving is the opposite
of sitting. Thus, you can lower your
risk of these conditions simply by standing and moving more, even if you
already exercise. That's because routine
movement during the day adds on to those benefits. The importance of movement
for health is so well-established that some doctors advise their patients to
use sitting "in moderation,"
(aka, don't sit too much). Researchers analyzed thirteen studies of
sitting time and activity levels. They found that those who sat for more than 8
hours a day with no physical activity had a risk of dying similar to that posed
by obesity and smoking. However, unlike some other studies, the analysis of
data from more than a million people found that 60 to 75 minutes of moderately
intense physical activity a day countered the effects of too much sitting.
Other studies have found that for people who are most active, sitting time
contribute little to their risk of death.
Overall, research seems to point the fact that less sitting and
more moving contribute to better health. Everyday movement not only reduces
your risk of major ailments, but also help burn more calories. The Mayo Clinic
coined the term "non-exercise activity thermogenesis" to refer to the
energy you burn through ordinary activities that you don't think of as
exercise. These are activities such as fidgeting, carrying the laundry upstairs
or to the yard to hang them up, dancing around the house to your favorite tune,
or even standing while you talk on the phone. There's no need to work out like
an Olympic athlete. A 15 to 20-minute walk accomplishes a lot when done
regularly.
The impact of movement—even leisurely movement—can be profound:
weight loss, increased energy, better muscle tone, improved mental health, in
addition to dodging the harmful effects of obesity, diabetes, heart disease,
non-alcoholic liver disease and some forms of cancer.
So... stand up and move around.
Noralyn Onto Dudt found out
so many years ago that cleaning her 3 level-house, gardening, and an hour-daily
walk can have a great impact on both the body and the mind.
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