Easy -
It will prompt them to take a brisk walk in the fresh air.
To calm them down - it works for me at any rate.
ttfn
US aerospace agency NASA has announced that it is developing a brain-monitoring hat for airline pilots to wear. The idea is that the bonce-clocking headset will know when pilots become "mentally overloaded" and help them to "realise" this. The brain-titfers are being developed at NASA's Glenn Research Center using "functional …
Believe you me, when performing an instrument landing in turbulent conditions, you do not need a box that goes beep to inform you that you are at pucker-factor 11.
A box that tells your employer that you reached overload will end your career pretty damn quick !
What next, a box to tell divers that they are encountering high water pressure? Perhaps a box to tell fishermen when they are getting cold.
Well done NASA.
(disclaimer - this is from my sub-PPL level experience)
Aviation has certain priorities - there's an old saying: "Aviate, Navigate, Communicate" - indicating the most important to least important things you should be doing, in all cases the "Fly the Aircraft" (FTFA) rule applies.
Having the aircraft systems being "aware" of pilot stress levels could possibly be very useful - in a glass cockpit, displays could be reconfigured to remove information not immediately necessary, and enlarging what remains to give it more prominence.
(what is "immediately necessary" might be disputed - that's the main problem I can see with this)