January in Michigan is not inspiring running weather. It’s 22°F, the sidewalks are iced over, and sunset comes at 5:15. The treadmill beckons.
But base building doesn’t care about your feelings. This is the phase where you lay down aerobic capacity — slow, easy miles at a conversational pace. Zone 2. The kind of running that feels like you’re not trying hard enough.
You are. The mitochondrial adaptations happening at easy pace are the foundation everything else sits on. Tempo runs, intervals, race-pace work — all of it is built on the base you develop now, in the dark, when nobody’s watching.
Three months from now, when the speed sessions start clicking, I’ll know why. It’ll be because of these grey January miles.