You have the cells of every one of your kids inside of you!  So
Mom: Eric, Jon, Chris, Rachel, and I still live on inside of you!
Listen here to this fascinating NPR story!!

From the producer of the story…

If the Good Hypothesis
turns out to be true and every child leaves a posse of good soldiers in
their mothers, then no matter how crummy we are to our moms, we are,
willingly or unwillingly, still doing something nice for her — on the
inside.