Chapter 1
The inner plumbing of thirst
Chapter 2
Busting the H2O myths
Chapter 3
The danger zone of overhydration
Chapter 4
Global adaptation and ancient wisdom
Ch 2 · Busting the H2O myths
doctorx Readers in 1945 missed that prepared foods contain most of the U.S. Food and Nutrition Board's recommended 2.5 liters of daily water.
Quiz
In what year did the U.S. Food and Nutrition Board release the recommendation that was later misinterpreted as the eight-glasses-a-day rule?
Quiz
Why is the universal "eight glasses of water a day" rule considered a myth by modern scientists?
doctorx Water-rich foods like cucumbers and strawberries deliver hydration alongside essential nutrients.
Quiz
Approximately what percentage of a person's daily water intake typically comes from solid foods in a standard diet?
Quiz
Which of these common vegetables has the highest water content by weight, coming in at about 96% water?
Fun Fact
Hydrating foods: Cucumbers and watermelons are made of over ninety percent water, helping you eat your daily fluids.
Quiz
Why do moderate amounts of coffee and tea still count toward your daily hydration goals?
Quiz
What is the term for a substance, like caffeine or alcohol, that promotes the production of urine?
Glossary
dehydration (noun)
A condition caused by the excessive loss of water from the body. In 2002, researcher Heinz Valtin found no scientific evidence supporting the popular eight glasses a day recommendation.
A condition caused by the excessive loss of water from the body. In 2002, researcher Heinz Valtin found no scientific evidence supporting the popular eight glasses a day recommendation.
Quiz
What is the medical term for the skin's ability to snap back into place, which decreases during severe dehydration?
Quiz
Why doesn't drinking extra water past the point of healthy hydration improve dry skin?