There are 2 causes of anxiety. 1. Something that triggers adrenaline. 2. The inability to reassure ourselves. Anxiety is learned by modeling from a parent or by not learning how to reassure ourselves. 1. A loud noise, raised voices, or even a sudden thought can trigger our adrenaline. When we rush or think, or say out loud, "I’ve got to hurry," our body releases a surge of adrenaline to prepare us to run. The catch is, we’re not actually running, so we don’t need that burst.