There a specific hormones that get released when you're under stress, physical or mental.
I am guessing that the hormones create some kind of physical reaction that can be "predicted" in some way. I don't think it is accurate, but it does seem to be in the ballpark. I don't mind stress, it helps me grow.
The entire internet seems to be a cesspool of approval seeking behavior.
It does, but they are quite non specific. So it's about guessing lol! But interesting that it's nearly correct!
I will have to read up on it and see what it is doing