Most of us likely have days when we feel we're not looking our best.

Maybe our hair's a little wonky, or we look more tired than usual. Or perhaps there's a feature of our physical appearance that we've never quite made peace with. 

But for some young men who participate in an online community called "looksmaxxing," those self-critiques can become excessive. And the criticism they receive from other members — and their suggested remedies, which can include self-injury and surgery — are even more …