Well it lists 2 pro studies and 1 against, and it's only more then fair to link both sides/proof. But i think this matter is very person specific; and certainly

Well it lists 2 pro studies and 1 against, and it's only more then fair to link both sides/proof. But i think this matter is very person specific; and certainly not as black/white as told. Can't find any studies on this that have been done on twins or triplets, for me that would have been more interesting then subjective personal experience(s). Some people perform better under hard deadlines and pressure, others can't cope with pressure at all. I would not be surprised if same applies to people performing with a lack of rest/sleep. Though I never said or meant to give the idea that it doesn't have any effect, nor if it always have the same affect. I merely wanted to point out there are quite a few cases, situations where i think being tired does warrant a badge of honour. And that going that extra mile, even when super tired, where others give up is (very) honourable. And calling it a day, and accepting you can't find a solution that working day, is not very honourable (in my humble opinion). And yes there is more to life then work, but that's not the point i try to make. :)