When Mary Collins had a bike accident that laid her up, she got interested in the sedentary nature of U.S. culture and started researching and writing about it. This book is the fruit of her labor. She argues that in 99 percent of human history, humans have lived as "a species on the move", but with modern inventions and life has we have literally be "stopped us in our tracks".
I have become convinced that humans need quite a bit of physical exercise in a day and the amount of time we spend sitting in front of screens each day is vastly contributing to our mounting health crisis---which has led Dr. John McDougall to state that we are at a point in our history in the U.S. that we are so obese and out of shape that we could not defend ourselves from an invading nation!
Another reason to GET IN THE SADDLE! :-D
