My colleague, Jill Bruyere, is an expert on running. We’re in a mentorship group that meets a few times a year and I’ve gotten to know and respect her. I’ve decided to make her my ‘go to girl’ with all our running related questions. I was pleased to hear what she had to say about running and what she said the biggest mistake most runners make. This is what I’ve always said too, but it sounds better coming from an expert!