Estrogen, T Cells, and Autoimmunity

The moment a woman’s hormones begin to decline, the entire body starts aging faster. The brain, heart, bones, immune system, and metabolism are all affected by a single biological shift most doctors barely explain.

I sat down with Dr. Amy Killen, physician and leading expert in regenerative and longevity medicine, to explore the science of female aging and why ovarian health may be the true driver of how long women live. We break down the real biology behind menopause, why estrogen is far more than a reproductive hormone, and how hormone loss can accelerate cardiovascular disease, cognitive decline, bone loss, and systemic inflammation.

Dr. Killen also explains the emerging science behind hormone replacement therapy, the misunderstood relationship between estrogen and breast cancer risk, and why many doctors still are not properly trained to treat menopause. We discuss stem cells, mitochondrial health, and the growing interest in therapies like hyperbaric oxygen, peptides, red light therapy, and plasma exchange, and what the evidence actually says.

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TOPICS DISCUSSED

00:00 Why Ovarian Aging Impacts Lifespan

01:24 Why Dr. Amy Killen Focuses on Women’s Longevity

03:19 What Longevity Actually Means in Medicine

04:20 Stem Cells and Regenerative Medicine Explained

05:51 How Stem Cells Help Repair and Communicate With Tissue

11:32 Hormones, Perimenopause, and Rapid Aging

18:45 Why the Ovaries Are the “Peacekeepers” of Aging

24:10 Hormone Replacement Therapy Explained

31:20 Vaginal Estrogen vs Systemic Estrogen

38:50 Testosterone Therapy in Women

43:15 Longevity Therapies and Mitochondrial Health

48:30 Red Light Therapy, Hyperbaric Oxygen, and Recovery

50:54 Peptides and the Lack of Long-Term Safety Data

53:25 Therapeutic Plasma Exchange and Longevity Research

55:38 The Estrogen and Immune System Connection

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I’m Louisa Nicola - clinical neurophysiologist - Alzheimer’s prevention specialist - founder of Neuro Athletics.

My mission is to translate cutting-edge neuroscience into actionable strategies for cognitive longevity, peak performance, and brain disease prevention.

If you're committed to optimizing your brain- reducing Alzheimer’s risk - and staying mentally sharp for life, you’re in the right place.

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