If you want to improve upon a previous ultramarathon, you have to look critically at yourself and your training. In today's episode, that's exactly what I did, putting together a plan for a stronger, faster 2020.

Last year I lost my grandmother, one of the people I admired most. Over the years she taught me a lot about how to live life - much of which is key to being successful in the sport of ultrarunning. Here are the five key lessons she taught me about life, running, and happiness.