Anxiety can happen at any age. Anxiety itself is part of the human condition, present in our lives merely because we exist. Sometimes, anxiety grows and expands and begins to take over our thoughts, feelings, and behaviors; when this happens, we may qualify for a diagnosis of one or more anxiety disorders. Both existential anxiety and anxiety disorders such as separation anxiety, generalized anxiety disorder, social anxiety disorder, and fears or phobias, can happen at any age. Let’s take a look at the anxiety that can happen at various ages.