Fascinating. This was done on pilots?
Good point - you would assume so by the source...but I think it probably bears out in other industries due to the high stress...and feeling that you can never catch up and will outlive your savings.
One of the most depressing things to see is a patient at age ~65 get cancer or some other horrible illness. Imagine working your entire life, getting your joy and youth taken away from you, only to die a couple years later. Fucking sucks. It's why people need to save in bitcoin.