the plain answer

How long does a craving actually last?

Most cravings crest and fall within twenty to thirty minutes if you do not feed them. They feel endless at the top — that feeling is the crest doing what a crest does, not a fact about the future.

the shape, drawn live

The reliable part is the shape, not the number

A craving behaves like a wave. It builds fast — faster than feels fair — reaches a crest, and then falls on its own, as long as you do not feed it. Twenty to thirty minutes is the figure clinicians use as a rule of thumb, and it is a rule of thumb rather than a measured constant: some waves are shorter, some come back in sets across an evening.

What is reliable is the shape. It climbs, it peaks, it falls. It does not climb forever, even though at the peak it feels certain that it will.

Why the crest feels like forever

At the top of the wave, your attention narrows until the craving is the whole room. Time distorts with it — three minutes at the crest feels longer than the twenty that came before it. This is not weakness; it is what threat does to perception.

It is also why people act at the peak. Not because they must, but because the peak whispers that this is how it will feel from now on. It never is. The next ten minutes always look different from inside the crest than from past it.

What to do with the twenty minutes

You do not have to win against a wave. You have to give it time to be a wave. The moves that work are the ones that carry you through the shape: slow the body down, put the feeling into words, or simply watch the craving the way you would watch weather.

The paced sequences on our surges page are built for exactly this window — the sixty-second ones for the crest, the longer ones for the whole ride.

goodThe rise-crest-fall shape is the basis of urge surfing, from Marlatt's relapse-prevention work and a core practice in mindfulness-based relapse prevention. Bowen et al., JAMA Psychiatry, 2014.

Ride one out, with company

The Pull is Marrow's wave-riding space: a breathing ring, the live curve drawn with your own clock, and a person one tap away the whole time.

The questions inside the question.

Do cravings get shorter over time?+
For most people, yes. Each craving that passes unfed teaches the brain the signal does not get answered, and the waves tend to come less often and crest lower. The first months are the loudest; it is not like this forever.
What if my craving lasts hours?+
A craving that feels constant for hours is usually a chain of waves, each one re-lit by a trigger: a place, a person, a feeling, the time of day. The move is the same — ride the one that is here now — plus one extra: change the room you are in. New rooms start fewer waves.
Is it okay to distract myself instead of riding it out?+
Yes. Watching the wave is one way through; movement is another. Ten minutes of walking measurably lowers craving intensity in trials. Both count. What does not help is arguing with the craving or bargaining with it — the conversation keeps it fed.
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