Is that something that has been studied? Is it effective, or is it just because, administratively, internally, you can't do it any other way because you work only five days a week and on Saturdays and Sundays you can't make that determination? They live there seven days a week. They don't have a Monday-to-Friday week. They're there seven days a week.
On April 17th, 2018. See this statement in context.