What purpose does it serve to linger in front of the mirror with no clothes on lamenting the existence of your love handles, your cellulite, your belly pouch, your back fat, or whatever other part of your body you wish were different?
Let me answer that for you. Zero purpose whatsoever.
I'm not saying I've never done it. And I would be lying if I said I haven't done it recently. It's a real thing that we do.
But you can stop.
You can stop by being aware of this completely unproductive activity. The second you start staring and criticizing is the moment you walk away.
Maybe that means that you move the location of your full length mirror so that you don't pass it every time you walk down your hallway.
Maybe you tape a couple pieces of paper across the middle of your mirror so that you can still check and see if you've got spinach in your teeth or a booger on your face, but it prevents you from standing there and obsessing over your body.