Taking a weekend break really starts from top down.
We tend to follow our leaders. There has to be a way for one to say or ask 'does your family come first?' Which means when it comes to the weekend show that and do not work or send/respond to emails on weekend. If one chooses to work then trigger the email not to come out till first thing Monday morning. Believe you me it works. Starts a positive trend. Took me 19 years to get to this point and I realized how much I missed out on by not working non stop 7 days a week.