With improvements in technology, sedentary lifestyles have quickly become a very serious worldwide problem, especially in the west. Sadly, physical inactivity, which has seen a dramatic increase over the past several decades, significantly increases the risk of numerous diseases and conditions. This includes several forms of cancer, diabetes, hypertension, coronary and cerebrovascular diseases, obesity, and all-cause mortality, among others. Unless there is a reversal of this growing trend, the incidence of these disorders will increase, life expectancy will decrease, and medical costs will continue to rise.