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Your body’s rest and repair work is done during sleep. Studies are showing a link between lack of sleep and Alzheimer’s disease. As you sleep between 2 AM and 6 AM, your brain is cleansing itself…no sleep, no sweep of toxins.

Per a Mercola newsletter: A number of studies have linked poor sleep or lack of sleep to an increased risk of Alzheimer’s disease. One reason for this is because your brain’s waste removal system only operates during deep sleep.17,18 This waste-removal system has been dubbed the glymphatic system.19,20,21,22,23 By pumping cerebral spinal fluid through your brain’s tissues, the glymphatic system flushes the waste (including the harmful proteins amyloid-beta) from your brain back into your body’s circulatory system, from where it is then eliminated.

However, in order for it to do this work effectively, you have to enter deep sleep for a long enough time. During sleep, the glymphatic system becomes 10 times more active than during wakefulness. Your brain cells also shrink by about 60 percent, allowing for greater efficiency of waste removal. During the day, the constant brain activity causes your brain cells to swell in size until they take up just over 85 percent of your brain’s volume,24 thereby disallowing effective waste removal.

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