Often There's a Reason

    Fatigue

    Persistent fatigue is rarely a single thing. Investigated as one continuous picture by Dr Martin Galy.

    Your Concerns

    What Is It?

    Persistent fatigue is one of the most common reasons patients come to 23MD Longevity — and one of the most clinically interesting, because the cause is rarely a single thing. Thyroid function, iron and B12 status, vitamin D, sex hormones, cortisol regulation, mitochondrial function, and sleep architecture all contribute. The 360 Longevity consultation, led by Dr Martin Galy, investigates these as one continuous picture rather than as separate complaints. The plan that follows comes from what the bloodwork and history reveal.

    Recommended Pathway

    Treatments for Fatigue

    The treatments our doctors most often recommend for this concern. Your consultation confirms the right combination and sequence for you.

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    23MD Digital

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    Common Causes

    What Could Be Causing It

    Hormonal

    Perimenopausal shifts, thyroid imbalance, post-pill stabilisation.

    Nutritional

    Iron deficiency, B12, vitamin D, magnesium.

    Sleep Architecture

    Disturbance not always visible to the patient; affects recovery profoundly.

    Mitochondrial Function

    Energy production at the cellular level.

    Cortisol Dysregulation

    Chronic stress changes the body's pattern of energy availability.

    Subclinical Infection or Inflammation

    Sometimes uncovered by bloodwork.

    FAQs

    Your Questions, Answered

    Medically reviewed by Dr Martin Galy, MBChB, GMC-registered on April 2026.

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