Three Good Things Exercise: A Nightly Practice Shown to Lift Mood Over Time

About this tool

The Three Good Things Exercise is a daily reflection in which you record three things that went well and why each happened. This free tracker gives you a place to notice ordinary moments of comfort, connection, or accomplishment, including on days that were otherwise difficult. Three Good Things, sometimes called the Three Blessings exercise, is one of the most studied practices in positive psychology. The instruction is simple: at the end of each day, write down three things that went well, then add a brief note about why each one happened. That second step matters. Pausing on the why turns a passing good moment into something you actively notice and credit, whether to your own effort, another person, or good fortune.

Martin Seligman and colleagues tested this exercise in a randomized online study published in 2005. Participants were asked to practice nightly for one week, and the study found improvements in happiness and depressive symptoms at later follow-ups. Those who continued practicing tended to show greater benefits. The findings support trying the exercise as a self-help practice, while leaving uncertainty about how any particular person will respond. Noticing positive experiences is the exercise's purpose; the study does not establish that a specific change in attention explains every benefit.

The good things do not have to be big. A warm cup of coffee, a kind text, a task finished, a moment of sun all count. In fact, noticing small goods is part of the point, because most days are made of small things. Keep it short and consistent rather than long and occasional.

In Seligman's original trial, improvements were observed at the six-month follow-up, with larger benefits among participants who continued practicing (Seligman, Steen, Park, Peterson, 2005). Continued practice was a choice participants made, so this finding does not establish an ideal schedule for everyone. The original instructions included explaining why each good thing happened. Keep that reflection in your entries: it invites you to identify support, effort, opportunity, or chance. The study did not isolate that step to prove that it alone caused the benefits.

If low mood persists, affects sleep or appetite, or makes ordinary responsibilities difficult, consider talking with a licensed professional. You do not have to finish the tracker or wait for this exercise to work before asking for help. Psychology.com's therapist directory is a free way to find someone to discuss what you are experiencing. Bring examples of changes in mood and daily functioning if that makes the conversation easier.

A completed entry might read, My neighbor checked in because we had stayed in touch; I ate a meal I enjoyed because I kept ingredients available; I finished an overdue email because I made room for it. Use explanations that fit what actually happened. You can acknowledge your contribution while also recognizing another person's kindness or circumstances outside your control.

On a painful day, a good thing can be a brief moment of relief rather than a cheerful event. You might notice a comfortable chair, someone listening, or getting through a necessary task. Leave space for grief, anger, or disappointment alongside the entry. If searching for positives makes you feel pressured or ashamed, pause and choose another form of support. Completing every box is not a test of gratitude.

Look back for recurring sources of support and satisfaction. If time outdoors or contact with a friend appears repeatedly, consider making that activity easier to repeat. The tracker is a record of selected experiences, so it cannot measure your overall mental health or establish why your mood changed. A blank row may simply mean you were tired, busy, or chose not to write.

A Gratitude Journal offers a broader place to record what you appreciate, while a Gratitude Letter focuses on thanking someone for a specific contribution. Positive Psychology Worksheets collects related exercises if another format suits you better. The Happiness Test is a self-assessment that can prompt reflection; its result should be considered alongside your daily functioning and any concerns you want to discuss with a professional.

Reviewed by Michael Callans, MSW
Reviewed the exercise structure for fidelity to the original Three Good Things protocol.

References

1. Seligman MEP, Steen TA, Park N, Peterson C. Positive psychology progress: empirical validation of interventions. Am Psychol. 2005;60(5):410-421.
2. Emmons RA, McCullough ME. Counting blessings versus burdens: an experimental investigation of gratitude and subjective well-being in daily life. J Pers Soc Psychol. 2003;84(2):377-389.
3. Seligman, M. E. P., Steen, T. A., Park, N., & Peterson, C. (2005). Positive psychology progress: Empirical validation of interventions. Author manuscript. https://greatergood.berkeley.edu/images/uploads/Seligman-PosPsychProgress.pdf
4. National Institute of Mental Health. Depression. https://www.nimh.nih.gov/health/publications/depression

Three Good Things Exercise FAQ