(the average 10-stone runner burns 100 calories per mile, so 10 miles eats through a whopping 1000 calories). They also help to teach you the valuable art of conserving your energy through sensible pacing, and serve as a great confidence-builder when
. In countries that use the metric system, 30K (18.6 miles) is equally round and frequently used.Most coaches feel that once you reach 16 miles, youre in long-run territory. Thats the point where the psychological and physiological changes start to take place
