Written by Mo, Foundi CSO, PhD · Updated 11 November 2026
Short answer: Tie water to moments that already happen every day: when you wake up, your commute or the start of work, each meal, and a mid-afternoon break. The National Academies note that thirst plus drinking with meals keeps most healthy adults hydrated day to day. A routine simply makes sure busy days don't skip those cues.
Most people don't forget to drink because they don't care. They forget because the day runs them. A routine is a quiet way to put the glass where your day already goes.
Why use a routine instead of a daily target?
A routine works with the cues you already have, while a target asks you to keep count. The National Academies, which set Canada's and the U.S.'s water reference values, conclude that thirst combined with drinks at meals generally maintains normal hydration for healthy people. Their adequate intakes, about 2.7 litres of total water a day for women and 3.7 litres for men aged 19 to 30, include food and every kind of drink. They describe a population, not a personal quota. (See How much water do you need a day?.)
The problem on busy days isn't the number. Long meetings, commutes and screens push thirst into the background, and a routine fills that gap.
What are the four anchors?
They're four moments that happen on almost every workday. Attaching water to each one means you don't have to remember it separately.
| Anchor | The cue | The action |
|---|---|---|
| 1. Wake-up | Kettle on, or the coffee maker starts | Drink a glass of water while it brews, hot or cold. Canada's Food Guide suggests either. |
| 2. Commute or start of work | Laptop opens, or you leave the house | Fill a reusable bottle and put it where your hand rests. The CDC and Canada's Food Guide both suggest carrying one. |
| 3. Meals | You sit down to eat | Have a glass with lunch and dinner. Both the CDC and Canada's Food Guide recommend water with meals. Add a fruit or vegetable, since food contributes water too. |
| 4. Mid-afternoon break | A calendar reminder, or the first meeting after lunch | Refill the bottle. If it's still full from the morning, that's useful information, not a failure. |
On days with a workout or a long walk, add a fifth: Canada's Food Guide suggests drinking water during and after physical activity.
How long does it take for a routine to feel automatic?
Longer than the internet's "21 days", and it varies a lot from person to person. In a University College London study, 96 volunteers each repeated a daily eating, drinking or activity behaviour in the same context (for example "after breakfast"). The time it took to reach near-maximum automaticity ranged from 18 to 254 days (Lally et al., 2010).
The same study found that missing one day didn't materially affect habit formation. So if Wednesday falls apart, pick it up again on Thursday.
The study also points to what helps. Repeating the behaviour consistently, in the same context, made the habit more automatic. That's exactly what tying water to wake-up, meals and a fixed break does.
How do you make the routine easier to keep?
Remove friction. Small set-up choices do more than willpower does.
- Keep water within reach. Canada's Food Guide suggests a pitcher in the fridge or on the table.
- Choose a bottle you like and leave it in the same spot each day.
- Make it taste good. Canada's Food Guide suggests fruit-and-herb water (e.g. strawberries and basil, or raspberries and cucumber) or carbonated water. The CDC suggests a wedge of lemon or lime. (More ideas in How to drink more water when you don't really like water.)
- Use the temperature you prefer. The CDC suggests freezing water in freezer-safe bottles for cold water all day. Canada's Food Guide says hot or cold both work.
- Ask for water when eating out. Both the CDC and Canada's Food Guide suggest it.
How should the routine change with the seasons?
Adjust it for heat and activity, which are the main reasons needs rise. The National Academies state that people who are physically active or exposed to hot environments need more total water.
- Summer: Health Canada's extreme-heat guidance is to drink plenty of water before you feel thirsty. Add extra refills on hot commutes and afternoons.
- Winter: cold days and dry indoor heat can make thirst easy to miss. Warm drinks and soups count. (See Staying hydrated in a Canadian winter.)
What about coffee, tea and other drinks?
They count toward your fluids. Canada's Food Guide lists unsweetened coffee and teas, lower-fat white milk and unsweetened fortified plant-based beverages as healthy drink choices. It recommends water as the first choice, and limiting sugary drinks and alcohol.
Common questions
What is a good morning hydration routine? Drink a glass of water while your coffee or tea is brewing, then fill a bottle for the day. Pairing water with something you already do every morning is what makes it stick.
How can I drink more water at work? Keep a bottle within reach, drink a glass with lunch, and refill at a set mid-afternoon break. The CDC and Canada's Food Guide both suggest carrying a reusable bottle and drinking water with meals.
How long until drinking water becomes a habit? It varies widely. In a UCL study, reaching near-maximum automaticity took between 18 and 254 days, and missing one day didn't derail the process.
Do I need to hit a set number of litres? For most healthy adults, no. The National Academies say the reference intake isn't a specific requirement, and thirst plus drinks at meals usually keeps hydration normal. If you're unwell or have a health condition, ask a pharmacist or doctor.
Sources
- Institute of Medicine (National Academies). Dietary Reference Intakes for Water, Potassium, Sodium, Chloride, and Sulfate (2005), ch. 4 "Water". https://www.nationalacademies.org/read/10925/chapter/6. Accessed 9 Nov 2026.
- Health Canada. Make water your drink of choice (Canada's Food Guide; modified 23 Apr 2026). https://www.canada.ca/en/health-canada/services/food-guide/explore/healthy-eating-recommendations/make-water-drink-choice.html. Accessed 9 Nov 2026.
- Centers for Disease Control and Prevention. About Water and Healthier Drinks (reviewed 5 Mar 2026). https://www.cdc.gov/healthy-weight-growth/water-healthy-drinks/index.html. Accessed 9 Nov 2026.
- Lally P, van Jaarsveld CHM, Potts HWW, Wardle J. How are habits formed: Modelling habit formation in the real world. European Journal of Social Psychology. 2010;40(6):998–1009. https://doi.org/10.1002/ejsp.674. Accessed 9 Nov 2026.
- Health Canada. How to protect yourself from the health effects of extreme heat. https://www.canada.ca/en/health-canada/services/climate-change-health/extreme-heat/how-protect-yourself.html. Accessed 9 Nov 2026.
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