Stamina for Late Risers > Early Risers: http://www.theglobeandmail.com/servlet/story/RTGAM.20090423.wsleep0423/BNStory/Science/. However, you need to read the journal itself to verify the quality of the study’s method. They used only 30 subjects and the specific quality assurance controls weren’t stated in the article.
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Stamina for Late Risers > Early Risers?
