Instruct: Classify a given review as either positive or negative.
Query: I don't think so.

Some of this book is ok. If they would just stick to nutrition it might be ok. They wrote that exercise triggers migraines. Exercise opens the blood vessels and helps aid blood flow. My wife started getting on the treadmill in the mornings, and it's greatly reduced her migraines and improved our love life. Many parts of this book are crap. Oh, and it says sex triggers migraines. It actually relieves it. (again, that exercise factor)We read half of it and pitched it in the trash.