Three Good Things: The Evidence-Based Gratitude Practice

Does writing three good things each day actually improve well-being?

In Martin Seligman’s original randomized controlled trial, participants who wrote three good things and their causes each evening for one week reported significantly higher happiness and lower depression at one month and six months — making it one of the most replicated exercises in positive psychology. Effects are genuine but modest; the practice sustains benefits best when kept specific and causal rather than performed as a gratitude list.

Three good things — also called "three blessings" or "what went well" — is one of the few positive psychology exercises with direct experimental evidence for lasting effects on happiness. The original Seligman et al. (2005) study is widely cited, but less often read: the active ingredient is not counting positive events but attributing causes to them, which trains the brain to notice causal patterns it otherwise misses. Done lazily, the exercise produces a grocery list; done correctly, it rewires attentional bias.

Practices

Write three good things and their causes each evening

Before sleep, write three specific good things that happened and — crucially — why each one happened.

Keep entries specific, not global

One precise, specific good thing is worth more than five vague ones — train on detail, not volume.

Rotate to prevent hedonic adaptation

After 4–6 weeks, introduce variation to prevent the exercise from becoming mechanical.

Train optimistic causal attribution deliberately

Practice attributing good events to stable, internal causes — not to luck or one-off circumstances.

Share one good thing with another person

Tell one person about a good thing that happened — sharing amplifies the positive experience and builds connection.

Apply three good things to work contexts specifically

Use the exercise to rewire what you notice about your work day — contribution, competence, and collaboration.

Practice this with IX Coach

Reading about a practice changes nothing on its own. IX Coach turns these into a guided, adaptive routine — discerning where you are in real time and walking the practice with you, session after session.

Practice this with IX Coach

IX Coach: 7 days free, then $40/month (about $1.30/day).