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Why a Lack of Sleep Makes Us Depressed … And What We Can Do About It

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Why a lack of sleep makes us depressed … and what we can do about it Alice M. Gregory, Goldsmiths, University of London Historically, insomnia has been thought of as secondary to other disorders such as depression. The idea was that you became depressed – and that your sleep got messed up as a consequence. This might involve difficulty falling asleep, excessive time awake at night or waking up earlier than hoped. This may make sense to those who have experienced depression and found that thoughts of distressing events such as of a deceased loved one, or previous failures, keep them awake at night. The possibility that depression leads to insomnia is also consistent with research in which I have been involved – where we found that adults with insomnia were more likely than others to have experienced anxiety and depression earlier in life. But could things really be the other way around? Could poor sleep be making you depressed? Over the past decade or so it has become increasingly clear that disturbed sleep often comes before an episode of depression, not afterwards, helping to do away with the notion that sleep problems are secondary to other disorders. This is…

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