is that intensity is the primary factor needed to improve fitness," says Pierce. "Many runners have reported success with the programme after repeated failures with high-mileage schedules – and they find it easier to fit just three runs into their busy lives
run or a high-mileage week will make it easier to handle the tough stuff in the real world, whether it's managing employees, raising children, taking care of elderly parents, or dealing with illness. Monster maxims During heavy training
