Sentences with phrase «even ultrarunners»

There are 2 main reasons we can't: (1) it's impossible for the body to ingest calories at a rate of 800 per hour while exercising — even ultrarunners who have trained this for a long time can only do 300 - 350, and they are burning calories at a rate of say 1500 per hour --(2) the body is wired so that at lower intensities you get more fat - burning and at higher intensities you get more sugar burning.