Drink Less

The Dry January challenge: how to do it, and make it last

The Dry January challenge is a month with no alcohol, from January 1 to 31. It started in 2013 as a campaign by the UK charity Alcohol Change UK and is now taken up in the US and many other countries. To get through it, plan before January starts: pick your alcohol-free drinks, clear the house, tell people, and know your hardest days in advance.

This guide covers who should check with a doctor first, what to do in late December, a week-by-week plan, what the research says you can expect, how to handle a slip, and the part most guides skip: what you do on February 1 so the change sticks.

Who should not do Dry January alone

For most people, a month off alcohol is safe. The exception is anyone whose body has come to depend on alcohol. If you drink heavily every day and get shaky, sweaty, sick, anxious, or can't sleep when you go without, stopping all at once can bring on alcohol withdrawal, which can be dangerous and, in rare cases, life-threatening. Harvard Health and doctors quoted in news coverage of the challenge give the same warning: daily heavy drinkers should talk to a doctor first, who can help you cut down safely or stop with support.

Talk to a doctor too if you take medicines for anxiety, sleep or seizures, have a liver condition, or have had withdrawal symptoms before. In the US, SAMHSA's free, confidential helpline is open around the clock on 1-800-662-4357.

Not sure where you stand? Count a normal week first. Our guide to how many drinks a week is normal shows how to turn pours into standard drinks and where the heavy-drinking line sits.

What the research says you can expect

Two studies are behind most of the claims you'll read about Dry January. It's worth knowing what each actually measured.

StudyWhoWhat they foundLimits
Royal Free Hospital, London (Mehta et al., BMJ Open, 2018)94 moderate-to-heavy drinkers who chose to stop for a month, compared with 47 who kept drinkingAfter one month: insulin resistance down about 26%, systolic blood pressure down about 7%, weight down 1.5% on average. No change in the group that kept drinkingPeople chose their group (not randomized); small; one month
University of Sussex surveys (Dr Richard de Visser, 2019 evaluation)Dry January 2019 participants, surveyed in January, February and August, with a general-population comparison group72% said they slept better, 84% saved money, 80% felt more in control of their drinking. In August they were still drinking less than before; the comparison group wasn'tSelf-reported online surveys; people who signed up are motivated

So the fair summary is: a month off alcohol is linked with better sleep, lower blood pressure and weight for many people, and with drinking less for months afterward. It isn't a cure, it doesn't reset years of heavy drinking, and results differ from person to person.

When you might notice changes

These are common patterns people describe, not promises. If you have a medical reason to track blood pressure or weight, measure it at the start and end of the month so you know your own result.

Before January 1: your December checklist

Dry January is won in the last week of December. Doing these seven things before the first is worth more than any amount of willpower on January 3.

  1. Count your current week. Write down what you drank over a normal week before the holidays. It tells you how big the change is and gives you a number to compare in February.
  2. Write down why. Two or three reasons in your own words: sleeping through, the morning run, money for a trip, a blood pressure reading. Put them on your phone's lock screen.
  3. Find your cue. When do you usually pour? Home from work, cooking, the kids in bed, Friday night. That moment is where January gets hard, so it needs a plan of its own.
  4. Stock your replacements. Buy what you'll drink instead (list below) and a glass you like for it.
  5. Clear the house. Give away, store out of sight or finish sensibly what's open. Don't plan a huge New Year's Eve "last hurrah"; heavy drinking right before a month off makes the first days worse.
  6. Tell people. Your partner, the friends you drink with, the group chat. Ask one person to do it with you, or to check in weekly.
  7. Look at the calendar. Birthdays, work dinners, a trip, the big game. Decide now what you'll order and say at each one.

A week-by-week plan for the month

WeekFocusWhat to do
1 (Jan 1–7)Get through the cueAt your usual drinking time, do the replacement right away: change clothes, pour the alcohol-free drink, start dinner or a walk. Go to bed a bit earlier; tired evenings are harder.
2 (Jan 8–14)The first weekendPlan Friday and Saturday ahead: a film, a class, dinner at a place with good alcohol-free drinks. Have your line ready for offers.
3 (Jan 15–21)Beat the slumpBook a reward for day 21 with the money saved so far. Try one new thing in the evening slot: a recipe, a show you only watch then, a hobby.
4 (Jan 22–31)Plan FebruaryNotice what changed (sleep, mornings, money). Decide your rules for February before the 31st: your weekly number and your dry days.

Track every day. A paper calendar on the fridge with a mark for each dry day works as well as an app. Seeing the chain grow is a real reward in the first two weeks, before the slower benefits show up.

What to drink instead

The drink in your hand is part of the habit. Replace it with something that still feels like a treat:

Watch the sugar in some mixers and sodas. A plain sparkling drink most nights and a fancier one at weekends keeps it simple.

The hard moments, and what to do

MomentWhy it's hardWhat helps
6 p.m. on a weekdayThe drink marked the end of workA new "off" signal: a shower, a 10-minute walk, then your alcohol-free drink
Friday nightThe week's rewardA treat that's planned: takeout you love, a film, dessert
Dinner out or a partyOffers, rounds, standing aroundOrder your drink first, before anyone asks. Hold it. "I'm doing Dry January" ends most offers
A bad dayAlcohol was how you calmed downFive minutes of slow breathing, a walk, or calling someone; then decide
A big game or a birthdayDrinking is part of the eventDecide your order in advance, bring your own drinks, leave earlier if it gets hard
Day 15–20The novelty has goneLook at your reasons and the money saved; book the day-21 reward

Lines that work, said once and kindly: "I'm doing Dry January." "I'm good with this, thanks." "I'm sleeping better, so I'm sticking with it." You don't owe a longer answer.

If you slip

A drink on day 12 doesn't cancel the 11 days before it, and it's no reason to give up the month. Harvard Health's advice is not to feel guilty and to start again the next day. The Sussex research reported that even people who didn't complete the month were drinking less afterward than before they started.

  1. Note what happened just before: the place, the people, the mood, whether you'd eaten.
  2. Make one plan for next time: "If there's an open bar, I'll get a soda water first and hold it."
  3. Carry on the next day. Don't add extra days in February to "make up for it".

If you find you can't go more than a few days, or the cravings are much stronger than you expected, that is useful to know. It's a good reason to talk to a doctor, not a reason to blame yourself.

Damp January: the cut-back version

Some people choose a "damp" or "dry-ish" January instead: drinking less, not nothing. That can mean only weekends, no drinking at home, or a set number of drinks a week. It's a real option, especially if a full month off feels out of reach or you want to practice the habits you'll keep. The same tools apply: a weekly number, dry days chosen by name, a plan for your cue. Our guide on how to cut back on drinking alcohol has a 4-week schedule for exactly that.

February 1: how to make it last

The month ends; the habits shouldn't. The biggest risk is going back to exactly where you started, or celebrating with a heavy weekend. Before January 31, decide:

If you'd like to know which pattern your drinks follow before you set those rules, our free 2-minute drinking pattern quiz asks when, where and why you drink and names the cue behind most of your drinks.

Questions people ask

When does Dry January start and end?

It runs from January 1 to January 31: 31 days with no alcohol. You can start any month; the idea works the same.

Does Dry January actually do anything?

In a 2018 study, moderate-to-heavy drinkers who stopped for a month had lower blood pressure, better insulin resistance and slightly lower weight afterward. Survey research from the University of Sussex found that most participants reported better sleep and saved money, and were still drinking less in August.

Is non-alcoholic beer allowed in Dry January?

Most people count drinks under 0.5% ABV as fine. Check labels, since some contain up to 0.5%. If alcohol-free beer makes you want the real thing, skip it for the month.

Will I lose weight during Dry January?

Some people do, because a 5 oz glass of wine is around 120–125 calories and a regular beer around 150 (USDA data). In the Royal Free study, average weight loss was 1.5%. It depends on what replaces the drinks.

Why am I so tired during Dry January?

Many people feel tired in the first days as sleep patterns adjust, especially if they used alcohol to fall asleep. It usually passes as sleep settles. If you have strong symptoms such as shaking, sweating or a racing heart, see a doctor.

What if I drink during Dry January?

Carry on the next day. One drink doesn't undo the month, and the research suggests partial months still bring benefits.

Plan your month around your cue

The free drinking pattern quiz takes 2 minutes. It finds the moment that sets off most of your drinks, so you know where January will be hardest.

Take the quiz

More on drinking less: all our drink-less guides.

Sources: Alcohol Change UK, the Dry January challenge (founded 2013). Mehta G et al., "Short-term abstinence from alcohol and changes in cardiovascular risk factors, liver function tests and cancer-related growth factors: a prospective observational study", BMJ Open 2018;8:e020673. University of Sussex, "Take part in Dry January and you'll reap the benefits for months" (Dr Richard de Visser, evaluation of Dry January 2019). Harvard Health Publishing, "Take the Dry January challenge", January 2024. WKYT/Fox19, "Dry January challenge offers health benefits but poses risks for heavy drinkers", January 1, 2026. NIAAA, Rethinking Drinking (low-risk limits). USDA FoodData Central (calories). SAMHSA National Helpline, 1-800-662-4357. This guide is about habits and is not medical advice.