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1 results for "lebron james"

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  1. Sleep tracking brings new info to athletes

    Zach McCann

    No line of work requires more sleep than "professional athlete." Roger Federer and LeBron James have said they sleep an average of 12 hours per day, compared to about 7 hours for the average American. Usain Bolt, Venus Williams, Maria Sharapova a...

    Blog | June 01, 2012