It's a shift in thinking that is rippling through places of work, schools and homes as the very fundamentals -- chair at desk -- seem to cause harm when used for the lengths of time now considered normal.
The Occupational Safety and Health Administration recommends mixing noncomputer-related tasks into the workday, so that you're moving and using different muscle groups.
In fact, occupational sitting time is where the epidemiology of physical activity first began, writes one researcher in the British Journal of Sports Medicine.
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