Slight modification to the 30/30 work cycle

I was just reading about the 30/30 work cycle, in short work 30 minutes then relax 30 minutes. This sounds ideal, but I think a better idea is to never focus on a problem more than 30 minutes. If you go 30 minutes without a break through, you need to stop thinking about it and relax.

Removing your focus every 30 minutes when you are being productive sounds like a terrible idea. If you are in the zone, stay there.

(Source: Lifehacker)