Question 400 of 433
How much water do I need?
The short answer
Needs vary with body size, activity, heat, food, illness, and medicines. There is no universal eight-glass prescription; urine color is only a rough guide.
Older adults lose the sense of thirst and are prone to dehydration, especially on diuretics or in heat. Drink with meals and before exercise. People with heart failure, kidney disease, low sodium, or prescribed fluid restriction need individualized advice. Specialty water has no established general clinical advantage over safe ordinary drinking water.
“This book is for education. It is not medical advice, and reading it does not make you my patient or create a doctor-patient relationship.” From the book’s medical disclaimer. Full disclaimer
PHYSIOLOGY / CLINICAL GUIDANCE — Hydration needs vary; heart or kidney disease may require fluid limits.Evidence grade (draft mapping)EEstablished clinical knowledgePart 27, Q400 · Part sources
From Longevity Unmasked by Afshine Ash Emrani, MD, FACC. Medical disclaimer. This book is for education. It is not medical advice, and reading it does not make you my patient or create a doctor-patient relationship. Nothing here is meant to diagnose, treat, cure, or prevent any disease. Medicine is personal: a test, drug, supplement, or exercise plan that helps one person can harm another. Do not start, stop, or change any medication or treatment because of something you read in these pages. Talk with a licensed clinician who knows your history first. If you think you are having a medical emergency, call 911. The author disclaims responsibility for any loss or harm arising from use of the information in this book.