[impl]

This article is about nurses, though. In the US many ER nurses work 12 hour shifts and they obviously don't have the option of personal downtime. It's likely that as "computer" people we're already reaping much of the benefit discussed.

[yardie]

This article is about nurses in care homes. They aren't under the same constraint as an ER nurse.

Reason why ER nurses work 12 is continuance of care. You're better off being looked after by 2 shifts who are familiar with your case rather than 3 or 4. More people just add complexity