Runners Learn to Realize Their Training Limits - WSJ.com

Runners Learn to Realize Their Training Limits - WSJ.com:

"The body responds beautifully to the right schedule of training stresses,' Lynn Bjorklund, who in 1981 set the still-standing female course record for the Pikes Peak Marathon, wrote in an email. 'However, too much stress and not enough nutrition or recovery pushes your body toward injury and illness. You need to stay in that zone of just enough, and that takes a very high tuned and honest appraisal of yourself.'

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