Read More: NHS- inform
"With anxiety you get the same response [fear] but your threat is for example, [anything that negatively impacts you]... Your brain finds it hard to return to normal, as you keep the response going by continually thinking and worrying about it... Your brain has mistakenly identified something as a 'threat.' So you are getting the correct response if something is a threat, but the 'threat' has been identified incorrectly in your brain."Read More: My Therapist
An example with Dr. Ryan's idea could include being worried about a test vs. being so nervous to take it that you skip taking it or cry about it. Feeling anxious about a test could also increase how much you procrastinate. You don't want to study because studying makes you think more about the test which makes you more worried, so to stop that worry you procrastinate more but that's makes you even more worried for the test if you don't or do study.