The Four Shields: The Initiatory Seasons of Human Nature

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You are purchasing a Acceptable copy of ‘The Four Shields: The Initiatory Seasons of Human Nature’. Condition Notes: Fairly worn, but readable and intact. If applicable: Dust jacket, disc or access code may not be included.

Steven W. Lockley Russell G. Foster Sleep (Paperback) (UK IMPORT)

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How much sleep is enough?. What is sleep?. What happens when we don’t get enough?. We spend about a third of our lives asleep – it plays a crucial role in our health and wellbeing. Over the past century, our knowledge of how sleep occurs, what it does, and what happens to our health if we do not have enough has developed hugely.