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    Sleep & Regeneration

    Sleep is cell cleansing - not laziness.

    „Without darkness, no healing."

    — Prof. Dr. med. Jörg Spitz

    1The Glymphatic System - Garbage Collection in the Head

    At night, the brain is cleaned of waste products. The glymphatic system is only active in deep sleep.

    Those who sleep poorly store neurotoxic waste.

    Sleep is not passive time - it is active regeneration at the cellular level.

    Key Insights

    • During sleep, brain cells shrink by 60% - this creates space for cleaning
    • 7-8 hours of sleep per night are a biological necessity
    • Shift work massively increases the risk of chronic diseases

    2Melatonin and True Night

    Melatonin is not just a sleep hormone - it is one of the strongest antioxidants.

    For its production, we need true darkness. Screen light inhibits melatonin production.

    The modern world has stolen the night from us - with serious consequences for our regeneration.

    3Rhythm and Breaks

    The body follows a circadian rhythm - an internal clock.

    The body also needs breaks during the day. The day needs diastoles - rest periods like a heartbeat.

    Recovery is not weakness, but system maintenance.

    Metaphors & Images

    Like a city without garbage collection - the brain suffocates if you don't sleep.

    The glymphatic system can only work during sleep. Without sleep, toxic waste accumulates.

    The day needs breaks - like a heartbeat needs diastoles.

    Without rest phases, there is no regeneration.

    Practical Implementation

    • 1Use blue light filters in the evening or avoid screens
    • 2Completely darken the bedroom
    • 3Regular sleep times - even on weekends
    • 4Last meal 3 hours before sleep
    • 5Real daylight in the morning for the internal clock

    Personal Exchange

    Do you have questions about this topic or would you like to book Prof. Dr. Spitz for a lecture?

    Prof. Dr. Jörg Spitz

    Prof. Dr. Jörg Spitz

    Highly Infectious Health Pathogen & Methuselah Doctor

    Pioneer of preventive medicine and Vitamin D expert. Mission: Creating a new health culture for society.

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    joerg@profspitz.de
    Metropolregion Rhein-Main, Deutschland

    © 2026 Prof. Dr. Jörg Spitz. All rights reserved.