
How to stay motivated to drink water!
In 2021 we showed you how to get more water into your daily routine. What still holds true, what science says today, and which myths you can safely forget.
You want to drink more, but by the time you’ve finished your second task at your desk you’ve forgotten. You’re not alone. The good news: it’s not about willpower-it’s about missing triggers in your daily life. Link water to existing habits and you’ll drink more without constantly reminding yourself. Here are the tricks that worked in 2021, plus a fact-check on what you really need.
- The oft-quoted three litres is a myth. Germany’s Nutrition Society calculates about 1.5 litres from beverages plus the water in your food.
- Your needs rise noticeably during sport, heat, fever or diarrhoea-then it can be significantly more.
- Anchor drinking to routines: mornings after waking, before every meal, in every work break.
- Flavour helps. Lemon, mint, cucumber or sparkling turns dull water into a drink you’ll happily reach for.
- A visible bottle on your desk beats every app because the cue is right in front of you.

How much water you really need
Let’s start with the myth that stubbornly persists. Three litres a day, we often hear, and almost no one manages that. Germany’s Nutrition Society (DGE) recommends about 1.5 litres from beverages for adults, plus roughly another litre from solid food. Fruit, vegetables, soups and even bread contain water. In the end you land at a total intake of about 2.6 litres, but not all of it has to come from drinking.
That’s a relief. You don’t have to force yourself through litres of water to do something good for your body. What matters is the daily average, not a rigid number on the bottle. And needs are individual: anyone who sweats a lot, exercises or is out in the heat loses more fluid and should top up. Fever and diarrhoea also push requirements higher. Incidentally, your body reliably lets you know when something is missing. Thirst isn’t failure; it’s a working signal.
Drinking rarely fails for lack of will. It fails because no everyday trigger reminds you.
Three routines that stick
The old rule of thumb-21 days to form a habit-is neat, but unsupported. Behavioural research suggests closer to two months before a new routine runs on autopilot, with wide variation by person and task. What counts isn’t counting the days, but how firmly you attach drinking to something you already do every day.
Three anchors work best in practice. First, a large glass straight after getting up, before coffee. Second, a glass before every meal; it subtly supports satiety and keeps you from overeating out of hunger. Third, the micro-break at your desk: when you read a line or pause to think, use that second to reach for the bottle instead of your phone. None of these routines steals extra time; they simply piggyback on moments that already exist.
Make the glass a showpiece
Visibility beats discipline. A full bottle on your desk reminds you to drink more often than any reminder app, because the cue is physically in front of you. Set a simple goal: empty it once by lunchtime and again by the end of work. Two clear milestones are easier to hit than the vague instruction to “drink more.”
Then there’s taste. If you find tap water bland, liven it up without resorting to sugar or lemonade. A slice of untreated, well-washed lemon is the classic. Cucumber, fresh mint, a few berries or rosemary work just as well. Sparkling water adds fizz. Turning a chore into a drink you look forward to is the difference that keeps it going for weeks.
Hydration is also an underrated lever in sport. Anyone who trains quickly notices that adequate water affects performance and recovery. For a deeper dive on how it specifically impacts endurance and regeneration, our colleagues at InspiredBySports go into detail.
These mistakes cost you the most
The most common mistake is drinking only when thirsty. By the time the signal arrives, your body has often been running a deficit for a while. Better is an even rhythm spread across the day rather than playing catch-up in the evening. Chugging a litre right before bed disturbs sleep more than it compensates.
The second mistake hides in the drinks themselves. Fruit spritzers, soft drinks and sweetened iced teas count toward fluid intake but bring plenty of sugar along. Regularly quenching thirst with them adds calories without filling you up. Water, unsweetened tea and fruit-infused water are the more honest choices. Alcohol dehydrates instead of hydrating, so a glass of water between drinks at a party isn’t a bad idea.
What to do in special phases
There are situations when the standard values fall short. On hot summer days, during physical work or intense training, fluid loss through sweat rises sharply-here you can safely increase intake. Frequent flyers know the dry cabin air that pulls moisture from the body. Older adults often feel less thirst even though their needs remain; for them a fixed drinking schedule is especially worthwhile.
On the flip side: more isn’t automatically better. Drinking litres in advance brings no bonus and can, in extreme cases, even harm. The goal isn’t records; it’s consistency. A mindful sip at the right moment counts for more than hitting an arbitrary number.
Good to Know
▸Do I really need to drink three litres a day?
No. Germany’s Nutrition Society recommends about 1.5 litres from beverages for adults; the rest comes from food. Three litres are only advisable under heavy exertion, heat or illness.
▸Does coffee or tea count toward my fluid intake?
Yes. The long-held belief that coffee dehydrates is outdated. In normal amounts, both coffee and tea contribute to your fluid balance. Water remains the best base because it has no calories and no sugar.
▸How do I know if I’m not drinking enough?
Typical signs include headaches, fatigue, poor concentration and dark urine. Pale yellow is a good indicator that your fluid balance is on track.
▸Does lemon water help with weight loss?
Lemon water itself has almost no calories and can replace a sugary drink, saving you sugar. A glass before meals also boosts satiety. It’s not a miracle slimming aid, but a sensible companion.
If you want to dig deeper into nutrition, we have the right follow-ups for you: how to prep healthy meals with minimal effort is covered in our piece on Meal Prepping. And why colour on your plate is more than just eye candy is explained in Eat the Rainbow.



