keeveek: All do respect, i think most people died lying down. Either in their bed, or on the battlefield.
Well I was mainly joking but I would say that the thing that kills them happens when they're standing, at least. If they'd stayed sitting down indoors, they'd have been fine. As for dying of old age lying down, well that's true but that's usually in their sleep not when they're sitting in a chair playing The Witcher or something.
Then again, I did hear how most injuries happen in your own home, but that's counting things like "scalded by hot water" or "banging your head on a low ceiling" as an injury rather than "hit by a bus" or "stabbed".