If I asked you to name a vulnerable emotion, joy doesn’t present as the obvious answer. Instead, we tend to think about shame, loneliness, anger, anxiety, and other more traditionally “negative” emotions. So how is joy potentially the most vulnerable emotion we experience? Brene Brown answers this question in her research about foreboding joy, which she defines as: “the experience of joy immediately followed by worry or dread.”

So many of us have experienced this confusing phenomenon of mixed emotions without an understanding as to what or why this is happening internally. The feeling is so widespread that many idioms have attempted to illustrate this particular experience: have you ever thought, “This is too good to be true” or experienced the feeling of “waiting for the other shoe to drop?” I know I have experienced this long before I had a name for it. I remember one particular instance where I was looking over at my partner with love and awe, only to have the feeling transform into fears about the end of the relationship and how devastated I would feel. I also remember the intense negative self-judgment I experienced, becoming frustrated that I couldn’t enjoy a good thing and had to ruin it with these intrusive thoughts. Learning about foreboding joy has been illuminating and validating when thinking back on these memories.

I hear this same self-talk in therapy sessions every day. I have clients who describe not wanting to get too excited about a new relationship, not wanting to settle into a sense of calm at a new job, and generally not wanting to let their guard down in case the positive experience doesn’t last. So, why do we do this? Why does dread often follow joy?