Why do we respond the way we do when we are startled or scared? What does it mean that we wake in the night soaked with sweat and our heart racing? Why do I feel physically tense or nauseous at work? Anyone who has experienced these uncomfortable moments knows how large of a role our bodies play in relation to our mental health. Here we have one of the oldest chicken and the egg questions in psychology: is what I am experiencing physically driving my mood and thinking, or