Even your selfish reason isn’t selfish, Reine.
I’m sure everyone who knows you wants you to live to be a hundred.
Have I mentioned my weird great-great-aunt who did live to be a 100? She was a mean old lady who ate an entire pie (lard and flour crust, of course) every day. She wouldn’t let anyone else have so much as a crumb.
So apparently being cruel as hell and eating a pie a day is a good way to go about extending your life.