Looking at the other reviews, i think Olga herself would groan at their preoccupation with the ad hominem.
She and her collaborator want people to learn from her, and not limit themselves to getting emotional jollies.
Unfortunately, there's not too much to learn here. It seems like a case of you have the right stuff [genes], and the right upbringing, and away you go, or, more commonly, not.
Two underplayed points in the book: she is social/competitive and seems to get strong 'runners high' [is more emotional/reactive].
If you lack one or both, you're normal.
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What Makes Olga Run?