I had a train of thought on this, and I was going to comment it, but then I realized that I'm hungry and I thought about what I have in the kitchen that I might want to eat, and I forgot it. The derailment of thought trains is a serious and common problem. I hear that meditation helps if you -
I'm really hungry. Let's think about this later.
Maybe some !PIZZA and !BEER will help with those hunger and concentration issues :)