How much is enough?
For most healthy adults, roughly 2.5–3.5 litres of total fluid a day is a reasonable target — more in Rajasthan's summer, during fever, or with physical work. Needs vary with body size, activity and weather; the simplest check is your urine: pale yellow means you're doing fine, dark yellow means drink more.
Important: people with kidney disease, heart failure or on fluid restriction should follow the limit their doctor has set — 'more water' is not better for everyone.
Good times to drink water
- A glass after waking up gently rehydrates you after the night.
- A glass 30 minutes before meals supports digestion; avoid gulping large amounts during meals.
- Before, during and after physical work or exercise.
- Keep a bottle visible at your desk or workplace — visibility drives the habit.
Common myths, cleared
- "8 glasses is a fixed rule" — it's a rough guide, not a prescription. Needs differ person to person.
- "Thirst means you're already dangerously dehydrated" — thirst is simply your body's normal reminder; respond to it.
- "Cold water harms digestion" — there's no strong evidence; drink the temperature you find comfortable.
- "Tea and coffee don't count" — they do contribute fluid, though water should remain your main source.
Early signs of dehydration
- Dark yellow urine, or urinating much less than usual.
- Dry mouth, headache, tiredness or difficulty concentrating.
- Dizziness on standing up.
- In children and the elderly, dehydration sets in faster — offer fluids regularly during fever, vomiting or loose motions, and use ORS as advised by a doctor.