In the weeks leading up to April's Boston Marathon, in which he finished third, American elite runner Ryan Hall logged hundreds of miles over the mountainous roads of Mammoth Lakes, California. The workouts that mattered the most? His weekly tempo
on their bodies tend to benefit from the higher end of that range," says Horne. Note how many hours you get each night. Review it and look for patterns. Once you figure out your target number, try to hit it each night, particularly during the week leading up to a
