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Gratitude journalling: the research behind it and how to do it properly

Gratitude journalling works — but most people do it in a way that significantly reduces the benefit.

What the research actually shows

Robert Emmons and Michael McCullough's foundational research (2003) found that people who wrote weekly about things they were grateful for reported higher wellbeing, more optimism, fewer physical complaints and more hours of exercise than those who wrote about daily hassles or neutral events. Subsequent research (Seligman et al, 2005) found that a single 'three good things' exercise practiced for one week produced wellbeing improvements that persisted for six months.

What reduces the benefit

Mechanical repetition: listing the same things every day ('I'm grateful for my health, my family, my home'). Research shows this produces habituation — the brain stops processing the gratitude genuinely. Frequency: surprisingly, daily gratitude journalling produces smaller benefits than twice or three times per week in some studies. The less frequent practice produces more genuine reflection each time.

The method that produces results

Specificity is the key variable. 'I'm grateful that my daughter laughed so hard at dinner that she cried' is more effective than 'I'm grateful for my children'. Adding 'why' — 'I'm grateful for this because it showed me how happy she is right now' — deepens the processing. Use our free gratitude journal template with its specificity prompts.

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Frequently asked questions

Is gratitude journalling just toxic positivity?
No — when done properly, gratitude journalling acknowledges difficulty while also noticing what is genuinely good. The research shows it works best when combined with authentic emotional processing, not as a replacement for it. The template's 'something difficult that contained a lesson' prompt explicitly includes the hard things.
When is the best time to write in a gratitude journal?
Evenings work well (reflecting on the day) or mornings (priming the day). The research doesn't strongly favour one over the other — consistency and specificity matter more than timing.