HALT stands for hungry, angry, lonely, tired — four states that read almost exactly like a craving, and four states a substance pretends to fix. The check takes ten seconds: answer the need first, then see what is actually left of the craving.
The brain files hunger, anger, loneliness, and exhaustion in the same neighborhood as craving: restless, edgy, something-is-wrong. A substance relieved all four at one time or another, so the signal gets misrouted to the old answer.
This is why 'just don't drink' fails so often at 11pm. The craving was never the whole problem — it was the messenger for a need that had not been fed all day.
Hungry: eat something real first, then re-check in twenty minutes. Low blood sugar is indistinguishable from a craving from the inside.
Angry: put the feeling into words before anything else. Naming an emotion measurably turns the alarm down — the naming itself does the work.
Lonely: reach one person before you reach for anything else. Isolation is the loudest trigger there is, and a text counts.
Tired: the kindest move is down, not through. Tired spends the willpower pool. Sleep is the one move that also lowers tomorrow's cravings.
HALT works best as prevention. A two-second check at the day's hard hour — for most people, late afternoon or late night — catches the need while it is still cheap to answer. People in long recovery do this so often it stops feeling like a tool and starts feeling like hearing yourself clearly.
The daily check-in asks the same four states in plainer words, and the evening practice sets the day down before the hard hours start.
If you are thinking of ending your life, or you are not safe where you are, stop reading and reach a person instead. These lines are free, confidential, and answered at any hour.