Syndrome X: The Comprehensive Guide to Understanding Metabolic Syndrome is Dr. Andy Barlow’s fourth best-selling book, expanding his mission to help patients and readers uncover the hidden drivers of chronic illness. In this timely work, Dr. Barlow explains how metabolic dysfunction underlies many of today’s most common health problems, from fatigue and brain fog to weight gain and cardiovascular risk. With his signature clarity, he connects the dots between lifestyle, neurology, and metabolism, offering practical steps to restore balance and prevent long-term disease. Drawing from years of clinical expertise, he provides both a comprehensive understanding of metabolic syndrome and a clear, actionable path toward healing.