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Drinking enough water as you get older

With age you may not feel thirsty even when your body needs water. A few small routines make it easy.

Published November 14, 2026 · General information, not medical advice

The short version

  • Your sense of thirst can get weaker as you age, so do not wait until you feel thirsty.
  • There is no single number for everyone. A practical sign: you should need the bathroom every few hours.
  • Some people must limit fluids. If your doctor has told you to, follow that advice.

Why it matters

Water helps your body digest food, take in nutrients and get rid of waste. The CDC notes that not drinking enough can lead to unclear thinking, mood changes, overheating, constipation and kidney stones.

The National Institute on Aging explains that older adults may lose some of their sense of thirst. Some medicines also make it more important to drink enough.

Six easy routines

How much is enough?

The amount you need depends on your size, how active you are and where you live. The National Institute on Aging gives a simple guide: drink enough that you need to urinate every few hours.

Some people need to drink less because of conditions such as kidney failure or heart disease. Ask your doctor how much fluid is healthy for you.

If you have a problem controlling your bladder, do not stop drinking. Talk with your doctor about treatment.

Questions

Do older adults feel less thirsty?

The National Institute on Aging says that with age you might lose some of your sense of thirst, so it helps to drink at set times instead of waiting to feel thirsty.

Does soup or milk count?

Yes. The National Institute on Aging lists water, milk, juice and low-fat soup as ways to add fluids through the day.

Please note: this page is general information, not medical advice. Ask your doctor what is right for you, especially if you have a health condition or take medicine.

Sources

Checked November 14, 2026.

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