Srsly, is this just a Japenese thing, or does he never learn? Its like he got lung cancer, but still goes to the coal mine every day... Just get a normal 40 to 50 hours per week job as most people do, who want to get older than 45 years.. I know this is the theme of this manga, that she just treats him back to health everytime instead of some real development, but were in chapter 24 already...