Tracking builds habits.
Cycles make them last.
A method for people who already track. The cycle gives every habit a beginning, an end, and a real choice at the end: continue, change, replace, or end. Built for the practice that comes after the basics.
The pattern under every long stretch of tracking.
After enough cycles of habit tracking, a shape shows up. Months of building, where streaks climb and the practice feels alive. A plateau, where the numbers keep rising and the energy quietly drains. Then a slip, then another, and a crash that can last as long as the climb. Then you start again. A wave.
It isn't a failure of discipline. Streak-only tracking has two operations: keep going, or start over. It can't say the bar is wrong, the goal has changed, or this has served its purpose. Without those moves, the only way out of a habit is to fail at it.
Read the streak wave essay →Start with our beginner guide, How to start a habit that lasts. When you're ready for more, Atomic Habits and Tiny Habits are the books underneath it. Habit Cycles is the layer above. It's what to do once the basic habit-building work is in hand.
A habit with a beginning, an end, and a real choice at the end.
A cycle is a habit run for 30 days, with an explicit start, end, and exit condition. At the start you write the why. Through the run you keep the daily tracking. At the end, you don't fail or succeed. You review.
Phase one
Setup
Days 1–2
Pick the habit. Choose the length. Define success, exit, and breakage plan. Name at least one person who knows.
- →Why this, why now
- →Success criteria
- →Exit condition
- →Breakage plan
Phase two
Run
Days 3–27
The bulk of the cycle. Track the patterns under the streak. Note breaks honestly.
- →Daily or weekly cadence
- →Habit context
Phase three
Review
Days 28–29
A longer, structured reflection. What did you actually do, what broke, what patterns surfaced, what would you change.
- →Honest count
- →Break patterns
- →What surprised you
- →Shared with your reviewers
Phase four
Decision
Day 30
One of four outcomes, decided on purpose. A cycle that trails off isn't a cycle — it's a drift.
- →Continue — same again
- →Change — adjust & rerun
- →Replace — related habit
- →End — graduated or done
Continue
Same shape, again. The conscious recommitment is the work.
Change
Adjust the bar, easier or harder. Rebuild consistency, or step it up.
Replace
Same goal, new tool. The habit isn't quite right; the underlying goal still is.
End
Cycle stops. Graduated, served its purpose, or wasn't right.
The same shape holds for habits you're trying to leave behind. Thirty days off the late-night scroll. Thirty days off the after-work snack. Same setup, same reviews, same four decisions at the end.
Read about the cycle check-in →The library has 140 habits sized for cycles, organised by goal, time of day, and life season. Each one comes with sample exit conditions and a starter cycle plan.
Browse the library →The cycle is the structural piece. Three more pieces sit alongside it.
Each is workable on its own. Together they're the practice. Each has its own page.
Varied effort, single shape.
Marathon training is running, strength work, yoga, rest. A group lets any of them count toward the daily cadence, with the breakdown still visible.
Habit groups →
Tracked without a target.
Sleep without trying to sleep more. Caffeine without trying to cut. Memory smooths the past; the column doesn't.
Awareness habits →
Where tracking becomes understanding.
A structured look at the cycle when it ends. Look at the data. Read the context. Ask what worked, what broke, why. Then decide.
The cycle check-in →
A letter on Sundays, about habits that hold.
One considered email each Sunday: a prompt for your own weekly review, a passage worth thinking about, and whatever Jamie is running this cycle. Free to read. Easy to leave.
- A prompt. A question for your weekly review.
- A passage. Something short from the week's reading.
- What Jamie's running. A note from the current cycle.
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Jamie Murphy
Founder · Writer
Product manager, developer, and habit tracker who spent years running cycles before building the framework into a site. Habit Cycles is the system Jamie wishes had existed at the start: bounded habits with reviews built in and a proper ending.
More about the project →