Many of us get confused by claims of how much the risk of a heart attack, for example, might be reduced by taking medicine for it. And doctors can get confused, too.
Just ask Karen Sepucha. She runs the Health Decisions Sciences Center at Boston's Massachusetts General Hospital. A few years ago she surveyed primary care physicians, and asked how confident they were in their ability to talk about numbers and probabilities with patients.
How do you know when a book has hooked you? When it really gets you in the guts and won't let go?
When you can't stop telling people about it. When you catch yourself inserting the title of the book into conversations where it has no place, breathlessly insisting to all your friends and relations that they need to read this book right now, and waving it around on elevators and hoping that someone asks you about it.