OK, it might look like a statement of the extremely obvious, but at least it's official now - according to a report on the BBC's website, overwork really can do you harm.
The report, which you can read here, suggests among other things that a 60+ hour working week can be injurious, and a 12 hour day opens up risks by a third.
Not great news when you live in the country that has one of the worst records for working long hours and oh yes, one of the highest rates of coronary diseases in the world.