Are There Physiological Causes for Anxiety?

This week on the Straight Truth Podcast a discussion ensues over a previous podcast due to a listener writing to share feedback and ask a question. Dr. Richard Caldwell and host Dr. Josh Philpot take up and discuss the feedback and question that the listener presents regarding Answering Anxiety. Answering Anxiety, being both a podcast topic addressed on the Straight Truth Podcast, and a book by Dr. Caldwell, compiled from a sermon where he exposits 1 Peter 5:5-11. Dr. Caldwell's podcast, book, and sermon all have a heavy emphasis on pride and the need for humbling ourselves as a key way of answering anxiety. The listener writes asking about the physiological issues that are not addressed in the podcast. The listener states that anxiety runs on a spectrum from low to high, where it can lead to panic attacks, etc. Further stating that pastors ought to address these other aspects when they are talking about anxiety. So what about these physical or physiological aspects of anxiety, how should Christians approach this? What is the biblical perspective or worldview?

Dr. Caldwell says there is no doubt that we are physical creatures and as a result, how we deal and respond to issues of life can be physical in nature. He would never deny that there may be a time or a place for someone to see a medical doctor to seek help for physical issues resulting from this. But these concerns, that are sort of at the forefront of our western culture, are not at the forefront in Scripture. He explains that if we walk through the Old and New Testaments with the writers of scripture, we will see that the issues of depression, discouragement, anxiety, and the like are not dealt with in this mann