Jokes aside, you may be right that it's self correcting at the species level (though still bad at the individual level -- i.e., for those women who wanted to ge

Jokes aside, you may be right that it's self correcting at the species level (though still bad at the individual level -- i.e., for those women who wanted to get pregnant). The first time I heard of Fisher's principle it blew my mind: If the male to female ratio gets imbalanced, it'll return to 1:1 after about 2 generations. The reasoning can be understood by logic alone (see the "basic explanation" in Wikipedia[1]), but there's also experimental evidence[2]. I think that the same argument should hold if the genetic component that makes you avoid fast food is an inherited property. [1] https://en.wikipedia.org/wiki/Fisher%27s_principle https://en.wikipedia.org/wiki/Fisher%27s_principle [2] http://www.genetics.org/content/148/2/719 http://www.genetics.org/content/148/2/719