Adjusting the brightness of your screen helps reduce fatigue. The ideal is to have the screen at the same brightness as the room, as if it were a naturally lit

Adjusting the brightness of your screen helps reduce fatigue. The ideal is to have the screen at the same brightness as the room, as if it were a naturally lit piece of paper. For instance, right now it's 15:00 for me and I'm using the MacBook at 25% brightness.