Find the problem before changing the target
A missed plan can reflect a forgotten cue, no available time, an inaccessible activity or an amount that is too demanding. These are different problems. Raising the target or adding reminders will not solve all of them.
NICE guidance recommends reviewing behaviour and outcome goals, action plans and coping plans. It also emphasises matching the approach to the person’s needs. The decision guide below is a practical application, not a tested algorithm.
Change the part that is getting in the way
| Recurring problem | Try changing | Keep an eye on |
|---|---|---|
| I forget before I start | Cue or preparation | Does the opportunity now prompt the action? |
| The time slot never works | Time, place or access | Is the new slot genuinely available? |
| The session is consistently too much | Duration, frequency or difficulty | Recovery, control and symptoms |
| The record is incomplete | Capture method or manual check-in | Are you measuring behaviour or only device use? |
| The action no longer serves the goal | The action or the goal itself | Is there a useful reason to continue? |
Keep enough of the plan to learn from it
Change one relevant part where possible. If you alter the time, amount, equipment and measurement together, it becomes harder to identify what helped. Do not keep a painful or unsuitable activity merely to preserve a comparison.
Use the next several realistic opportunities to judge fit. There is no research-backed universal rule that every plan needs exactly one week, two weeks or 21 days before review.
Make the next version concrete
Write: “The obstacle was __. I will change __. I will check __ after the next few suitable attempts.” Keep the record brief and consider asking for practical support.
Continue what works, simplify what does not, and seek appropriate advice when symptoms or health needs affect the plan. Revising a useful goal is part of managing it, not evidence that you failed.
Sources
Research and official guidance reviewed 3 November 2026; practical examples are illustrative.
- NICE: behaviour change, goals and review ↗
Supports regular goal review, action and coping plans, monitoring and individual fit. It does not validate the specific adjustment table.
- NIDDK: changing habits for better health ↗
Supports identifying barriers, planning alternatives and maintaining change after setbacks.
- Singh et al., 2024: time to form health habits ↗
Habit-formation times vary across behaviours and studies, so they do not establish a fixed review period for every goal.