Four kilometres into this morning’s planned 30 kilometre run, I lost all energy and felt like I’d hit the wall. The pace I could maintain was drastically reduced, and slight undulations became mountains.
I believe that the cause was hypoglyc(a)emia – low blood sugar. I’ve experienced similar symptoms in the past after drinking Sprite or Fanta immediately before a run. The body’s insulin response to the influx of sugar is complicated by exercise. This morning I had my usual pre long ...Continue Reading →