To a point. I'm not a workaholic by any means, I skew towards working 20 hours weeks. When everything is good, the time off allows me to be incredibly productive. Breakthroughs happen by themselves.

I am, however, prone to anxiety. When things start to become uncertain and I get anxious, I find it's much better for me to take the extra hours head-on and work however much is needed to dig myself out - 30,40, 50, or 60. Otherwise both work and rest become really low-quality as I can never truly procrastinate away from worry. Focused work is the only way through.

Which is one reason why I try to avoid work where there are many emergencies and sudden operational problems. It throws me off my game completely.

Edit: apologies for the typos, not used to posting from my phone :)