Book excerpt: ESSENTIAL MANUAL OF 24-HOUR BLOOD PRESSURE MANAGEMENT Hypertension is one of the greatest threats to human health. The World Health Organization (WHO) estimates that 1.13 billion people worldwide have hypertension. In 2017, new guidelines for managing hypertension were published by the American Hypertension Association (AHA), guidelines which lowered the diagnosis thresholds of hypertension, and thereby increased the prevalence of hypertension. As such, hypertension is now recognized as a more serious and widespread a condition than ever before. In this new edition of the Essential Manual of 24-Hour Blood Pressure Management, the author emphasizes that lowering the blood pressure (BP) and restoring the BP profile with adequate circadian rhythm is essential for a long life without cardiovascular events. The author also introduces updated evidence for managing hypertension throughout 24-hour periods, from morning to nocturnal hypertension. The Essential Manual of 24-Hour Blood Pressure Management, Second Edition, will be an essential companion for doctors who wish to provide evidence-based medicine and be familiar with the most cutting edge technology on monitoring BP. Medical researchers and students will also value the author’s many insights, drawn from his distinguished career.