Sad story for Miss Cain. For those thinking that women losing their period is something odd that only NOP experienced is not close to reality. Many women get themselves into that condition, and not eating enough is the reason. It has ruined many women in the sport.
The challenge is, of course, if you are lighter, you go faster. Stay in that state too long and you body will break. Long term effects are not good either (increased osteoporosis, fertility issues). Like parents with boys that have concerns about them playing football, parents of girls should understand there are potential health dangers in distance running at high levels.
Anyone that can read history books can see much of the restrictions on women distance running were long term health risks of distance running to women.
Historically, people also argued that "professionals" in sports would ultimately ruin the sport altogether. Surveying Athletics, we have rampant illegal drug use, people being treated like race horses, eating disorders, etc. All efforts many lives to go faster around a track is not the sign of our human capital being put into its best use.
Obviously, we have decided against these concerns, but they were not 100% incorrect. Some of these issues have merit, and perhaps we shall look at them again.
I disagree that a woman CEO at Nike or USATF would solve everything. Sort of a throwaway line at the end of an important discussion that highlights the perils of women running which has been evident the last 35-40 years. No reason to make that the main thrust of one's rebuttal against Miss Cain.
I hope Miss Cain finds peace with her life.