Physical inactivity causes 1 in 10 deaths worldwide, according to a series of studies released in British medical journal The Lancet.
Of the 57 million deaths worldwide in 2008 >5.3 million deaths may be averted annually if all inactive persons become active.
Lee, I.-M., Shiroma, E. J., Lobelo, F., Puska, P., Blair, S. N., & Katzmarzyk, P. T. (2012). Impact of Physical Inactivity on the World’s Major Non-Communicable Diseases. Lancet, 380(9838), 219–229. doi.org/10.1016/S0140-6736(12)61031-9