Considering that one-third of the average life span is spent asleep--or trying to sleep--it's amazing that more research isn?t done to determine how much sleep each different mental and physical type needs, rather than blithely issuing a study saying everyone needs exactly eight hours. After all, the world?s great thinkers varied wildly in their ...
Considering that one-third of the average life span is spent asleep--or trying to sleep--it's amazing that more research isn?t done to determine how much sleep each different mental and physical type needs, rather than blithely issuing a study saying everyone needs exactly eight hours. After all, the world?s great thinkers varied wildly in their ...
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