You have to set some boundaries. My big one is that I don’t work on weekends unless something is on fire. I may glance at emails but that’s it.

I also don’t live alone. I have a wife and kids and will take breaks to see them. I do work pretty long hours during the week but it’s punctuated with some positive human interaction. My wife stays home with the kids right now, so they are here.

I think if I lived alone I’d be prone to do what you do, and I’m not sure it would actually increase my productivity. There’s a point where you hit diminishing returns for any knowledge work. The brain needs rest like any other thing. I think if I lived alone I’d be forced to set weekday time boundaries to keep from going nuts.