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| March 16th, 2016Want to be a better runner? Improve your physical prowess with these mental techniques https://t.co/hLldFE1jrB pic.twitter.com/VCUguEh9Jw
— Scientific American (@sciam) March 16, 2016
Want to be a better runner? Improve your physical prowess with these mental techniques https://t.co/hLldFE1jrB pic.twitter.com/VCUguEh9Jw
— Scientific American (@sciam) March 16, 2016