Elixir of the Ageless by Patrick Flanagan and Gael Crystal Flanagan 1986

This is the story of scientific intrigue. Nearly a century ago, the Father of Fluid Dynamics, Dr. Henri Coanda, began a search for the secret of living water - the legendary Fountain of Youth. This quest took Dr. Coanda all over the world. He traveled to remote mountain valleys where people live to be over 100 years old and yet remain in vibrant youthful health. In all these places, the centenarians attribute their good health to the special cloudy colloidal water they drink. When Dr. Coanda was 85 years old he passed the quest to 17 year old Patrick Flanagan. In this book, Dr. Patrick Flanagan reveals how they discovered the secret of Hunza water and thus ended the quest.