>>Really ? You get better results working without a break ? I usually work on to stints with at least 2H in between, in crunge time I shift over to 3 shifts per day.
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>Depends on what I'm doing. If the weather is nice I'll usually take off in the afternoon and take the mountain bike out to the park. I try to get to the gym on bad weather days. But a lot of it has to do with whether or not I can get "in the zone" on whatever I'm working on. Sometimes I'm working on something and really don't realize 12 hours have passed.

I've danced on the knife's edge often enough, but when I am tired I might be tricked into thinking I am "zoned" while the real speed compared to best times suggests another sibilant with the first letter of my first name.

>I've always had a variety of attention-deficit disorder (though had never heard of it until I was in my 40s) and that means either not being able to concentrate at all or being obsessive for 18-24 stretches. Since I was high-functioning nobody ever thought I needed to do anything about it (other than not try to have a normal job)

You mean there is a "educated" latin name for my tendency to concentrate on doing all other things instead of a boring programming job ?

>I took to programming and writing because people were paying for mental horsepower and creativity, not the ability to keep to other people's schedules and follow the rules. I'm not a very 9-5 kind of guy <g> I've always considered that my greatest success in life has been to avoid having a job.

The only I had to live according to other people's time tables was in the army - there I learnt to sleep anywhere at a moments notice.