Working from home for the past 3 months taught me that a lot of my constant tiredness and apathy came from the constant noise you get in an open office. Some people can't handle being productive in a extremely loud, and extremely bright environment. It doesn't matter how much I destroyed my hearing by putting loud music over noise-cancelling headphones, I always felt tired after ~2 hours of work. Open offices seem to…
> I destroyed my hearing by putting loud music over noise-cancelling headphones Huh? The point of noise-cancelling headphones (at least to me) is that you can drown out the rest of the noise with fairly quiet music.
I've been in places where I wore in-ear phones (they have some passive noise-cancelling effect due to the silicone seal), _and_ with noise-cancelling headphones around those, in attempt to keep the noise out and be able to hear something.
Your ears have a sort of physical gain control built in, so if you listen to quiet music the environmental sound (that still gets through the noise-cancelling headphones) will sound louder than if you listen to louder music.
I don't recommend actually loud music, as that causes serious damage in the long run. But some modest volume will add some additional masking on top of all the other things done to keep out the environmental sound.