My immune system has taken a proper beating this winter. One bug after another has derailed my routine and, most frustratingly, my marathon training.
I’ve trained for multiple races using Runna, which we here at Tom’s Guide consider the best running app on the market right now, and I’m a genuine fan. But there has always been one gap for me. The app hasn’t accounted for real life. If you get ill, feel rundown, or simply have a week thrown off course, your plan doesn't allow for this.
