Reference: Gruber, J., Mauss, I. B., & Tamir, M. (2011). A dark side of happiness? How, when, and why happiness is not always good. Perspectives on Psychological Science, 6(3), 222-233. Gruber, J., Johnson, S.L., Oveis, C., & Keltner, D. (2008). Risk for mania and positive emotional responding: Too much of a good thing? Emotion, 8, 23–33.

Written by Mara Rowcliffe, BS.