It's dangerous to be dehydrated. Even marginal dehydration, without any symptoms, can cause health problems. But what exactly is the best way to stay hydrated? Authors William Holloway Jr. and William Sickert describe the importance of proper hydration and the dangers associated with dehydration. They also discuss the benefits of drinking pure water. Don't underestimate the healing power of water! Learn how this simple tool--water--can help you prevent illness and gain optimal health and vitality.