Even mild dehydration can dull your focus and drag your mood. Set a simple daily water goal, log each drink, and watch the progress bar fill.
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About this tool
Water is so basic that it is easy to forget. Yet even mild dehydration of around 1 to 2 percent of body weight can noticeably reduce concentration, raise feelings of fatigue, and affect mood. Keeping well hydrated is one of the lowest-effort wellbeing habits.
Individual needs vary with body size, activity level, climate, and diet. A common rough guide is 8 cups (about 2 litres) per day, but thirst and urine colour (pale yellow is a good sign) are reliable personal indicators.
Key takeaways
- Keeps hydration visible throughout the day.
- Simple habit that supports focus and mood.
- Customisable goal to suit your needs.
- Quick to log — one tap per drink.
- Browser-based with no sign-up.
Frequently asked questions
Individual needs vary. A common guideline is around 8 cups (2 litres) daily, but activity, climate, and diet all affect this. Pale yellow urine is a practical sign of good hydration.
Caffeinated drinks contribute some fluid but have a mild diuretic effect. Plain water is the most reliable hydration source. Count coffee cautiously and supplement with extra water.
Yes. Studies suggest even mild dehydration can reduce concentration and increase feelings of fatigue and low mood. Staying well hydrated is a simple, evidence-supported habit for feeling better day to day.