Of course there's no such thing. Working twenty hour days destroys your ability to think clearly. It ends up being - clinically, not just metaphorically - the e

Of course there's no such thing. Working twenty hour days destroys your ability to think clearly. It ends up being - clinically, not just metaphorically - the equivalent of coming into work blind drunk every day. How can you possibly hope to get your job done that way? Actually getting your job done and being a martyr are two different things, and you need to decide which you want. If you want the former, then when five p.m. comes around, stand up and walk away from the computer. Your work will still be waiting for you tomorrow either way, but this way you'll be fit to do it.