Does anyone else find it interesting that the women's 10,000m WR was untouched (excluding the Chinese, of course) since 1986...before the event was in the World Champs or Olympics. Meanwhile, the men improved from 27:13 (Mamede) all the way down to 26:22 (Geb).
This is the period when EPO was supposedly in vogue.
Perhaps the women did not find it as effective (again, possibly excluding the Chinese).