If you live a sedentary lifestyle, physical activity may not be enough to alleviate the negative health effects of a lot of time spent sitting.
Scientists and public health experts already know that sitting is bad for your health. Human beings spend much more time sitting than fifty years ago.
The number of people who are employed in jobs that require even mild amounts of physical activity has dropped quite dramatically in the last fifty or so years. In the 1960s around fifty percent of the American workforce had jobs that required muscle. Now that number is only around 20 percent.
Americans now spend more time sitting than ever before, especially since the most common recreation activities entail sitting in front of screens. This high “sitting time” has been associated with diabetes, cardiovascular problems, and obesity.