My mother in-law used to say "If you worry you die, if you don't worry you die, so why worry." None of her offspring are worriers either. Is it because they learned from an early age that worry is such a total waste of time? Or could it be that they are 'warriors' rather than 'worriers'?
Worriers versus Warriors The following is a case report from a neuroscience paper on the subject of "Warriors versus Worriers".