by more than three strides, because there's a psychological benefit to staying close. That's why packs form at races - because it's mentally easier to share the workload of hitting a pace." Plus you'll still be in reach to grab their shorts if things go
to stir up your routine. When you do the same run, day after day, you’re seldom challenged and your motivation is bound to sag. Think of it this way: if you eat a tuna and salad sandwich four days in a row, you’ll probably notice how delicious a different
