[arnvald]

It's definitely unhealthy and unsustainable, I agree with you. Doing it for a longer period of time must have some long-term negative effects on one's body.

There's something on the other side, though - when I was in my early 20s I could be obsessed about building things, even if it was just a project for university. When I woke up in the morning I was thinking about the next thing I was going to implement, and I could stay up till late night because I didn't want to stop coding. It wasn't healthy, thankfully it never lasterd very long, but I sometimes miss that feeling of being so passionate about building something, because for whatever reason I don't get that feeling anymore.

[rgoulter]

I noticed that whenever I've had that "just one more thing" passion, I've rarely been so productive on the following days.