....hit the marathon wallWhat's going on? The energy to power your muscles comes from a store of about 2000 calories worth of glycogen in your liver and muscles, which is enough to energise about 20 miles of running. When you run out of glycogen, your body is forced
also affect your time as one sneeze closes the eyes for a full second, upsetting your pacing. One sneeze every 60 seconds could add a minute to your 10K time or four minutes to a marathon - and it could destroy a sprinter's race.Q: What can I do if it
