It may be a common trait in programmers, since we're rewarded by getting to the bottom of things: "why is this function failing? who calls it? in which possible states?"

Most programmers have experienced being so immersed in code that we don't notice time is passing, forgetting to eat or sleep.

It's similar with immersion in social media / food / whatever. We become lost in the activity and lose our sense of self.

I've recently heard of the concept of conscientiousness as a personality trait. People with low conscientiousness tend to procrastinate more, and it's tied to ADHD. Apparently it can be trained. I'm trying (though not really succeeding) to make pauses, take a deep breath and think about "what am I doing right now? What should I be doing instead?". Seems so basic, like I've regressed to being a child who has no self control...