I have started to hold my breath more since I became a mother.
I hold my breath when I lay my sleeping baby down in the cradle. Please, please let him stay asleep.
I hold my breath when my husband plays with the baby, swinging him up in the air. He is careful and they both laugh, but still.
I hold my breath at every routine health checkup until the doctor finishes examining my son and smiles his approval at me.
I hold my breath when he is asleep and I am in another room and think I hear him cry. Sometimes I'm right, and sometimes I'm just imagining it, but the only way to find out is to hold my breath and listen.
And sometimes I do that thing that parents do, when we stand over our sleeping children and hold our breath, and listen to them breathe.