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Studying the Connection Between Sleep and Anxiety

    Home Psychiatry Anxiety Studying the Connection Between Sleep and Anxiety

    Studying the Connection Between Sleep and Anxiety

    By mghresearch | Anxiety, Neurology, Psychiatry, Sleep Disorders | 1 comment | 3 July, 2018 | 3
    pace-schott

    Edward F. Pace-Schott, PhD

    Edward F. Pace-Schott, PhD, is an investigator in the Sleep and Anxiety Disorders Laboratory at Massachusetts General Hospital. He studies the relationship between sleep and anxiety using sleep recordings, brain imaging and physiological measurements.

    Dr. Pace-Schott recently presented at SLEEP 2018, the annual scientific and clinical meeting for sleep medicine physicians, and sleep and circadian researchers.

    We asked him to discuss his research:

    Anxious people often don’t sleep well and poor sleep is a symptom of many psychiatric disorders, including anxiety.

    However, poor sleep itself may lead to anxiety disorders — studies show that sometimes sleep problems begin before a person develops severe anxiety symptoms.

    Why might this be the case?

    There are two important methods that we use to regulate our everyday fears and anxieties—fear extinction and habituation.

    In extinction, we learn a new memory that indicates that something we once feared no longer needs to be feared. The newly formed memory doesn’t erase the old fear memory; rather it coexists with and inhibits the fear associated with the old memory. For example, if one was in a minor auto accident on a particular street, driving there again and recalling the accident might cause anxiety for a time. However, after many trips down that street without an accident, one no longer experiences anxiety.

    In habituation, we become accustomed to things that once were anxiety provoking through repeated exposure. For example, we may be scared of flying the first time we fly in an airplane, but if we fly often, flying often becomes routine and innocuous.

    Extinction and habituation are learned and, like all types of learning, they must first be strengthened (consolidated) in the brain in order to become an enduring memory.

    A major function of sleep is to strengthen memories by facilitating memory consolidation. Therefore, if our sleep is disrupted or insufficient, the extinction and habituation memories we have formed may not be sufficiently strengthened to effectively compete with our fear memories, and anxiety may abnormally persist.

    Exposure therapy is the gold standard treatment for anxiety-related disorders such as posttraumatic stress disorder or social anxiety. In such therapy, a patient is exposed to situations or reminders of situations that elicit the specific fear being treated and therapeutic extinction memories are formed.

    However, such memories must persist for treatment to be successful. Therefore, we are studying whether strategically timed periods of sleep – either overnight or as naps – might improve the treatment results of individuals receiving exposure therapy for an anxiety disorder.


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    1 comment

    • Julie Ames Reply July 22, 2018 at 2:08 pm

      I’m a female in my mid 70’s. I have been diagnosed with bipolar, PTSD and anxiety. I went for a full year with 3 to 4 hours of sleep nightly and no daytime naps. I take a prescription med to help me sleep. Counseling is great. I’ve also been a member of AA for over 41 years. I was born with a mental illness. I’m 3rd generation with mental health issues. Thank you for this article. I do believe that anxiety can interrupt sleep. So can PTSD. I just have to deal with all my issues.

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