Though the studies seem expansive, for about a third of countries in the world, there exists no data on physical activity, mainly countries in central Asia and "those of low and middle income in Africa." Striking, the authors say, is the divide between where the studies are done and where disease occurs. Closing the gap in which there exists no data is critical for getting a handle on people's habits, lifestyles, and activity levels, or lack ...
more Though the studies seem expansive, for about a third of countries in the world, there exists no data on physical activity, mainly countries in central Asia and "those of low and middle income in Africa." Striking, the authors say, is the divide between where the studies are done and where disease occurs. Closing the gap in which there exists no data is critical for getting a handle on people's habits, lifestyles, and activity levels, or lack thereof.
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