Send us a text

Short Summary: Thyroid biology, offering insights into its role in metabolism, development, and longevity, making it a fascinating listen for those interested in how our bodies manage energy and health across the lifespan.

Guest: Diana van Heemst, PhD is a biologist at Leiden University Medical Center, specializing in gerontology and geriatrics. Her research focuses on the neuroendocrine biology of aging and longevity in humans, particularly involving thyroid functions.

Note: Podcast episodes are fully available to paid subscribers on the M&M Substack and to everyone on YouTube. Partial versions are available elsewhere. Full transcript and other information on Substack.

Full Summary: Dr. Diana van Heemst explores the thyroid's critical role in metabolism, growth, development, and transitions across life stages. It discusses the thyroid's evolutionary history, its location in the neck, and how it functions through hormone secretion, specifically T3 and T4. The conversation covers the importance of nutrients like iodine and selenium, the impact of thyroid hormone on various bodily functions, and the implications for health conditions like hypothyroidism and hyperthyroidism. It also touches on how thyroid activity might relate to longevity.

Key Takeaways:

• Thyroid Hormones: T3 and T4 are crucial, with T3 being the active form that regulates metabolism, heart rate, and cognitive functions.
• Iodine and Selenium: Essential for thyroid hormone synthesis; iodine is unique to thyroid hormones, while selenium is vital for the enzymes that regulate hormone availability.
• Hypothyroidism vs. Hyperthyroidism: Hypothyroidism is more common, especially in older age due to autoimmune issues, leading to symptoms like fatigue and cold sensitivity. Hyperthyroidism can result from iodine excess or autoimmune conditions like Graves' disease.
• Developmental Role: Thyroid hormones are vital for major developmental transitions, from birth to puberty, impacting brain development and metabolic adaptation.

*Not medical advice.

Support the show

All episodes, show notes, transcripts, etc. at the M&M Substack

Affiliates:

• Lumen device to optimize your metabolism for weight loss or athletic performance. Use code MIND for 10% off.
• Readwise: Organize and share what you read.
• Athletic Greens: Comprehensive & convenient daily nutrition. Free 1-year supply of vitamin D with purchase.
• KetoCitra—Ketone body BHB + potassium, calcium & magnesium, formulated with kidney health in mind. Use code MIND20 for 20% off any subscription.
• MASA Chips—delicious tortilla chips made from organic corn and grass-fed beef tallow. No seed oils or artificial ingredients. Use code MIND for 20% off.

For all the ways you can support my efforts