hormones and performance

I run terrible right before that time of the month. Then I think things pick up again, but I don't necessarily run awesome.

On another note, do lots of miles suppress the female sex drive? I have like no interest in sex whatsoever and I'm wondering if that's just inherent or if it's a result of like 60 mpw.

I have had the same effects, but usually right before my period to the first few days.

I read somewhere about the physiology of it. I has something to do with the rise of one hormone, or the drop of another. One of the effects is that you dont have to warm up much. The muscle tissue is primed and ready to perform.

There are some days I feel super-human. Other days, like shit. I have run pr's at any time of the month though, so dont start thinking "crap it's day 15, there's no way I can run a pr".

If you ran a 10.40, you can do it ANY TIME of the month. You need to trust in your abilities and your training. The mental edge and your actual training will do more for you than your cycle.

When I used to coach the throwers on a HS girls team, they'd throw great one weekend a month and terrible another weekend. My bet is that those on birth control pills don't have such wild fluctuations, but that's based on a sample of one.