au1929 wrote:And being more or less worried accomplishes what?
Well, being
more nervous (which is what we were discussing, not
more worried) can heighten our awareness of our surroundings, raise our heart rate and reaction time, and do a number of other things physiologically speaking that can be advantageous in a crisis situation.
"Fight or Flight"
Now, I realize that this effect may be counterproductive if no crisis materializes, but that's a very different thing than arguing that it is of no value. Should the worst happen, those who are on the lookout for it, may fare better than those who are not.