This is an excellent, well-researched book on the history of exercise and how it applies to our life today. Tracing the roots of exercise (actually movement) from earliest prehistoric times through the middle ages, to the industrial age and into current times. Mr. Lieberman's work is well researched with extensive endnotes. Written in an entertaining style, it is easy to read and absolutely enjoyable.

The author talks about all sorts of activity and inactivity from sitting, sleeping (very good idea), standing, walking, running, dancing, strength training and more. He also gives an overview of how exercise can help heal or, at least, minimize the effects of disease from hypertension, diabetes, cancer, Alzheimer's and, yes, COVID-19. I found as I read the book, I began incorporating more movement into my life without even thinking about it. The book obviously hit a nerve in the brain.

I highly recommend Mr. Lieberman's book for health and just as an informative and enjoyable read.