Hydration Challenge (21 Days)

Most people don't drink enough — and only notice it in the afternoon, when concentration fades and the headache sets in. The Hydration Challenge turns a simple appeal into a collective 21-day experiment: visible, trackable, social.

What does drinking enough actually change in the office?

Even mild dehydration — 1 to 2% of body weight — can measurably impair concentration and mood (Ganio et al., British Journal of Nutrition, 2011). The German Nutrition Society recommends around 1.5 liters of fluids a day. That sounds obvious, but in everyday office life with meetings, deadlines, and cold coffee, many people drink less. The Challenge gives the topic a framework and a goal: track daily, and see together who makes it.

How does the challenge become a lasting habit?

The decisive tip for making it work: visibility. Anyone who keeps a water bottle on their desk drinks more than someone who has to get up and go to the kitchen every time. Teams that use the Challenge to create good drinking conditions — water filters, glasses, visibly placed bottles — create conditions that remain after the Challenge ends. A good complement is the best practice Water Station: Making Hydration Visible.