Aside from what everybody else is saying, make sure you extend the headband arms to an appropriate length for the size of your head. I've broken a few headphone bands precisely with the same crack location and appearance because I kept them compact while wearing them, which means the bands flex wider than they should to fit over my stupid dumb big head.

Haha, that's cute.

No, they don't. Nor do hats, which I used to be told would give me hair loss. Either they're regurgitating old myths, or they're trying to get you to take off your headphones more so they can talk to you.