A decade ago, sleep was often viewed as a period of inactivity, basic advice suggested getting around eight hours a night was sufficient for well-being. However, this perception changed significantly in 2017 with the release of Matthew Walker’s bestselling book, Why We Sleep: Unlocking the Power of Sleep and Dreams. Walker, a British neuroscientist, brought greater awareness to the importance of sleep, emphasizing that it should not be considered a passive state.
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Walker’s research highlighted the role of deep sleep in activating the glymphatic system, which functions as a waste-clearance mechanism, removing metabolic debris and proteins associated with Alzheimer’s disease. Additionally, he demonstrated that sleep plays a vital role in memory consolidation and learning, positioning it as a crucial factor in health and wellness.