Without work, you might find yourself deprived of a spouse and children, so you probably better try and run the rat race at least a bit faster than the slowest rat. Take it from a slow rat indeed.

Time, maybe, but not effort.

You're no good to your family as a zombie drained of all energy by work.

If anything, soul-crushing boredom is likely to achieve that more thoroughly than being engaged with your work.

YMMV but no, that's not how energy works for me. If I'm bored, I can take a nap. Literally just sit there in front of the computer with my eyes closed and fall asleep.