running-shoesSometimes when I am out training I wonder about the amazing machine that is the human body.

  • How do my feet know to jog around my running route?
  • How do my arms know to work in rhythm?
  • How do my heart and lungs know to increase their work rate to provide the power?

I am an engineer, not a physician, but I do find it fascinating that the communication and coordination between all of these separate functions appears to be effortless.
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