The Noonday Demon

by Andrew Solomon

Anyone who has taken high school science classes knows that human beings are made of chemicals and that the study of those chemicals and the structures in which they are configured is called biology. Everything that happens in the brain has chemical manifestations and sources. If you close your eyes and think hard about polar bears, that has a chemical effect on your brain. If you stick to a policy of opposing tax breaks for capital gains, that has a chemical effect on your brain. When you remember some episode from your past, you do so through the complex chemistry of memory. Childhood trauma and subsequent difficulty can alter brain chemistry. Thousands of chemical reactions are involved in deciding to read this book, picking it up with your hands, looking at the shapes of the letters on the page, extracting meaning from those shapes, and having intellectual and emotional responses to what they convey. If time lets you cycle out of a depression and