✳myhappinesslab
Evidence and method

The limits of a seven-day personal test

A single starting rating and a week of observations can reveal a useful story, but it is a weak design for causal claims.

Try a seven-day experiment

Look at baseline, daily entries, adherence, spread and major life events before interpreting a pattern.

Open my lab

What to notice

Treat missing entries and wide variation as reasons for caution.

Record a 1–10 daily rating and whether you tried the activity. A missed day is useful context; it does not erase the rest of your week. At the first checkpoint, you can continue for seven or fourteen days, or choose something else.

How to interpret your result

We do not report p-values or claim statistical significance from this format. Longer rounds remain exploratory.

Keep your original prediction separate from the daily ratings. Your starting rating, number of observations and changing circumstances all matter. A personal week can reveal a pattern worth exploring, but it cannot establish cause or statistical significance.

Evidence and context

This guide describes a small personal practice. For the wider research context, see Well-being-focused interventions: network meta-analysis of randomized trials. Research findings describe groups and study conditions; your lab records describe your own experience.

Where to go next

What research says about nature and moodResearch reviews report associations and intervention findings for nature exposure and mental health, but settings and study quality vary.What research says about social connectionControlled trials of social connection interventions use varied methods and populations. An everyday message is only one modest approach.What research says about movement and wellbeingPhysical activity can support mental health and wellbeing; the World Health Organization describes benefits across ages.