Thank you for taking the time to write about this common misconception that the mental behavior of worry is somehow tantamount to problem solving behaviors! Rather the truth is that it impairs effective responding. your work on contrast avoidance is also much appreciated - it is tragic that worriers feel fear when positive emotional states arise because such positive states can also enhance problem solving and creative solution finding. Thankfully we have great CBT treatments for the habits of mind and behavior called GAD! Thanks in part to the both of you!