In my last post, I spoke of how important it is for our health that we move about frequently during the day. Why might this be so?
No one has an exact answer, but according to what Gretchen Reynolds found out, we quickly lose muscle tone and muscle mass if we don’t. And I imagine that since we evolved to support ourselves by hunting and gathering, we must have needed to stay in excellent physical shape for these life-supporting activities.
Even unborn and newborn human babies stay in constant motion when they’re awake. They weave and arch their torsos, wave their arms and legs, clench and unclench their fists and feet, and rotate their heads and even their eyes. This way their muscles grow and stay strong. Then their increased muscle tone prepares them for self-starting practice in hand-eye coordination, for pushing up, crawling, and walking.
All this muscle building and toning makes them ready for a life in which constant motion will be necessary for survival.
Our bodies evolved for a very different life from the current one. Our new ways of supporting ourselves, via sit-down jobs and sit-down job searches, are foreign to our health.