30 days

Drink more water in 30 days

four anchored glasses a day, front-loaded before 6pm

Most people don't drink too little water because they don't care. They drink too little because there's no moment in the day that says 'drink now', and thirst is a late signal that shows up long after your afternoon has already gone flat and slightly headachey.

The eight-glasses rule isn't a law — it's a number someone rounded decades ago, and roughly a fifth of your fluid comes from food anyway. What actually works is attaching a glass to things you already do, front-loading it before evening, and using the colour of your urine as the check rather than a total on an app.

The protocol

  1. Days 1–5

    Find the gap

    • Count what you actually drink for five days — water, tea, coffee, everything. Most people are surprised in one direction or the other.
    • Check the colour first thing and mid-afternoon. Pale straw is the target. Clear means you're overdoing it, dark means you're behind.
    • Fill a glass or bottle and put it where you already sit. Visible beats virtuous.
  2. Days 6–12

    Anchor two glasses

    • One glass before your first coffee. One glass with lunch. Same two anchors, every day.
    • That's roughly 500ml you weren't drinking, and it costs nothing because it rides on habits you already have.
    • Don't add a target yet. Two reliable glasses beat a 2-litre goal you hit twice.
  3. Days 13–19

    Add the afternoon

    • Add a glass at the mid-afternoon dip — around 3pm, when you'd otherwise reach for a third coffee.
    • A lot of low-grade afternoon fog is mild dehydration wearing a caffeine costume. Try the water first and see.
    • Sip through the afternoon rather than downing 500ml at once. Chugging mostly makes you go to the loo.
  4. Days 20–26

    Front-load, protect the night

    • Add a fourth glass with dinner, then taper. Most of your intake should land before 6pm.
    • Stop drinking properly about two hours before bed. Being up at 3am to go to the loo costs you more sleep than the water gains you.
    • If you're already waking to go at night, move the last glass earlier before you assume it's a bladder problem.
  5. Days 27–30

    Make it hold

    • Keep the four anchors and stop counting. The anchors are the habit; the total is a side effect.
    • Adjust up on hot days, on training days, and after alcohol. Adjust down when you're sedentary and cold.
    • Set your floor: on the worst days, the morning glass alone still happens. That's the one that carries the habit.

How you'll know it's working

  • Urine is a pale straw colour by mid-morning, most days.
  • The 3pm headache stops turning up.
  • You stop hitting 6pm parched and then drinking a litre before bed.

When you miss a day

There is no debt to repay here — a dry Tuesday is not made up for by two litres on Wednesday, and trying just means a broken night. You pick the anchors back up the next morning and nothing about the plan changes.

How Mosey helps

You don't have to hold the plan in your head.

Reading a protocol is the easy part. Mosey turns this one into scheduled days, adjusts it when your week falls apart, and keeps the streak alive while it does.

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Questions

Is eight glasses a day actually right?

It's a rough, generous rule of thumb rather than a target. Needs vary with body size, heat, and activity, and food supplies a decent share of your fluid. Colour is a better guide than any number.

Does tea or coffee count?

Mostly, yes. The diuretic effect of a normal cup is mild and it doesn't cancel out the fluid you drank. Coffee still counts toward hydration — it just shouldn't be your only source, and it comes with its own reasons to have a cutoff.

Why does this sit under sleep and energy?

Because the two most common symptoms of being mildly under-hydrated are an afternoon slump and a dull headache — the exact things people blame on bad sleep and then treat with more coffee.

Can you drink too much water?

Yes, though it's rare and mostly happens with very large volumes in a short window. If your urine is completely clear all day, you're past useful and can ease off.

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