Simpson gene
Wikisimpsons - The Simpsons Wiki
In the Simpsons episode 'Lisa the Simpson', it is established that Homer and Bart carry the Simpson gene, which contributes to baldness and laziness. The Simpson gene is only carried by males so Lisa and Maggie don't need to worry; as a matter of fact, from what we're shown in this episode, it seems that Simpson women in general are very successful.
I like eggs.