Explains that water is necessary to living things, describes the water cycle, and discusses foods that contain water, foods made with water, and the importance of clean water for health.
Explores the possible directions of neuroscience, including in the areas of biochemistry, drugs, computers, electrical treatments, stem cells, and gene manipulation, considering legal, ethical, and moral implications.
Explains why the human body needs water, how much water to drink each day, and how to make sure one gets enough water, and includes a glossary and a list of places to read more.