> it seems logic that statistically the more hours you work the more premature mortality will happen But many of the most dangerous jobs, say fighter pilot and

> it seems logic that statistically the more hours you work the more premature mortality will happen But many of the most dangerous jobs, say fighter pilot and Alaskan crab fisherman, are actually very short bursts of intense work. The pilot might log several hundred hours in a good year and the fisherman works in seasons that are only several weeks long. Trouble here is the mononumerosis, aka the need to boil a whole range of values down into a single number.