None ...
Feeling anxiety is a complete waste of time. Unlike pain, which protects us from dangers happening now, anxiety does nothing to protect us from dangers that might someday be.
wish I had that mindset. I can't help it when it overcomes me.
What could possibly happen to you that worrying about it makes better?
There is also the human instinct, the survival instinct without being always paranoid a person can perceive a danger.
There is a fight or flight reflex that manifests itself with the appearance of danger (real or imagined). The FFR creates physical symptoms, releases adrenaline in the the system, and prepares the body to deal with the danger.
But, and correct me if I'm wrong, we're talking about anxiety over things that may, or may not happen, in our future. FFR has a distinct evolutionary purpose. Anxiety, on the other hand, is detrimental to our existence.