Dr. Roche is an MD and current PhD candidate at Standford University working on epidemiology, focused on population health and genetics for athletes, spedifically women. she is also a freaking fast runner:
She is the co-author of, The Happy Runner: Love the Process, Get Faster, Run Longer and co-host of the popular podcast, "Some Work, All Play"
You can also hire her or their coaches at SWAPRunning.
Check out this past episode with Megan and David about their book.