Too much argument over this. Yes, for the majority of individuals over working is going to physically, mentally and emotionally drain them as they're generally trying to balance a separate life. The individual who wrote this article stated that he has a wife. Perhaps spending less time with his wife had some repercussions associated to it. Perhaps he likes his business but isn't completely in love with it. You can't really speak for everyone, that's for sure. It all depends on your purpose, your motive. What's your driving force? Why are you conducting business to begin with? I myself am a business owner and have been working non-stop for the last 10 years (from 18-28). When I'm not working, I'm still mentally engaged. I don't unplug or clock out. To me, it reminds me of when I was a child addicted to gaming. I would blissfully spend 12 hours playing my Sega or Super Nintendo in pursuit to beat whatever game was at hand. When I was at school I was thinking of ways to beat the level that I might have been stuck on for a few days. This is called passion, it's rare but it does exist so although I appreciate the article, I must ask to not advise everyone this same idea.