Researchers postulate that the effort required to separate work and "life" might cause more stress than it saves, and that balancing the two is not merely difficult, but impossible.
I've always found the notion of trying to separate the two odd. I'm better at work when I can tap into "life" experiences drawn from family and friends. And I'm happier in life with a supportive, encouraging network of professional colleagues - including many dear friends - behind me.
Maybe a better way to look at it is "problem-opportunity" balance? Nobody at home enjoys me brooding excessively about office worries, and vice versa. But everyone is pretty happy to share in hopes and plans for the good stuff, wherever it originates.
For me, work is a big part of my life, and my life bleeds into work constantly - so it's much easier to let them co-habitate than trying to keep either under quarantine.
Switching between your work and home roles is much harder if you try to keep them completely separate, the research suggests. Being actively engaged in one role while also thinking about your other role is known as a cognitive role transition. The larger the separation between the roles, the bigger the transition.