Guide · body · 3 min read
Do you actually need eight glasses of water — a calm, practical approach, when nothing else has worked today
Eight glasses is a number with no particular evidence behind it. Thirst and urine colour are better guides.
Start here
Here is what tends to work, in the order that helps most.
Nothing else has worked today. That is not a reason to skip this.
If you only do one thing from this page, do the first point below. It is first because it removes the most friction for the least effort.
What helps
Pale straw-coloured urine is the simplest check. Dark yellow means drink more; completely clear means you can stop.
Your kidneys are extremely good at telling you what they need. Thirst is a reliable signal for healthy adults.
Food supplies a meaningful share of your water, especially fruit and vegetables.
What to do when it does not work
Tea and coffee count. The idea that they dehydrate you is largely wrong at normal intakes.
Drinking more than you need does not improve skin, concentration or health. It mostly increases trips to the toilet.
There are real exceptions: hot weather, exercise, illness, pregnancy, and some medications. In those cases thirst lags behind need.
Questions people ask
Can you drink too much water?
Yes, though it is rare. Extremely large amounts in a short time can dilute blood sodium, which is dangerous.
Written for people who want the practical version. No accounts, no tracking, no newsletter wall.
If this is not the angle you need, try Preparing for a conversation you are dreading — an honest guide, if you are sceptical about all of this, When grief arrives out of nowhere — a gentle, practical guide, when you are waiting for something or When the inner voice will not let something go — the short version, when you have just finished work.