Overview

Why do you wake up tired even after a full night of sleep? The answer may surprise you. Millions of people live under the invisible burden of sleep debt, the cumulative deficit that builds when you consistently get less sleep than your body needs. Sleep debt silently erodes your energy, focus, mood, and long-term health, yet it is widely misunderstood and often ignored. In this comprehensive, science-based guide, Dr. Wright Nicholls explores the fundamentals of sleep debt, how it accumulates, and its profound effects on your brain, body, and emotions. You will learn why modern lifestyles make sleep a low priority, how sleep debt contributes to chronic illnesses, and what you can do to restore balance. Packed with practical tools, actionable strategies, and evidence-based advice, this book empowers you to measure, prevent, and recover from sleep debt, helping you reclaim your vitality and improve your quality of life. Inside you will discover: What sleep debt is and how it differs from sleep deprivation The stages of sleep, circadian rhythms, and the role of hormones How sleep debt impacts cognitive performance, emotional well-being, and physical health Factors that contribute to accumulating sleep debt in daily life Practical strategies to prevent and repay sleep debt through sleep hygiene, nutrition, exercise, and technology How to sustain healthy sleep habits for long-term benefits

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