Immunity Resistance Harmon’s

In the human body, immunity, resistance, and hormones are all parts of how we respond to infections, stress, and other challenges. However, the phrase "immunity resistance hormones" is not a standard medical term, so let's break it down clearly:

🔬 1. Immunity

This refers to the body’s ability to defend itself against pathogens (bacteria, viruses, etc.). It involves:

Innate Immunity: First-line defense (skin, mucous, white blood cells like neutrophils).

Adaptive Immunity: Specific defense involving T-cells and B-cells (which produce antibodies).

🛡️ 2. Resistance

This is often used synonymously with immunity, but specifically refers to the body’s ability to resist infections or diseases. Resistance can be:

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Natural: Genetic or inherited traits.
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Acquired: Through previous infections or vaccinations.

3. Hormones Involved in Immunity & Resistance

Several hormones play a key role in regulating immune response and resistance to stress or infection:

🧠 1. Cortisol

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Produced by: Adrenal glands
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Role: Anti-inflammatory; suppresses immune function under stress

High levels: Lower immunity during chronic stress

💪 2. Adrenaline (Epinephrine)

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Produced by: Adrenal medulla
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Role: Part of "fight or flight" response; increases heart rate, redirects blood flow

Effect: Short-term suppression of immune activity

🧬 3. Thymosin

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Produced by: Thymus gland
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Role: Helps in development and activation of T-cells (critical for adaptive immunity)

🧠 4. Growth Hormone (GH)

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Produced by: Pituitary gland
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Role: Stimulates cell growth, boosts immune function

💊 5. Cytokines (not classic hormones, but hormone-like)

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Produced by: Immune cells
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Role: Signaling proteins like interleukins and interferons that regulate immunity

🧬 6. Sex Hormones (Estrogen, Testosterone, Progesterone)

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Estrogen: Generally enhances immunity
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Testosterone: May suppress immune responses

Progesterone: Can have anti-inflammatory effects