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Longevity Optimization with Kayla Barnes-Lentz

Longevity Optimization with Kayla Barnes-Lentz

Dr. Abud Bakri, MD: Thymus Health, Circadian Biology, and the Truth About Peptides

Sep 17, 2026 · 1h 8m

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About this episode

Most longevity conversations focus on the brain, heart, muscle, and metabolism. Far less attention goes to the thymus, an immune organ that starts shrinking almost as soon as puberty ends, and new research suggests it may be quietly linked to fertility, hormones, and even how millions of women taking birth control are aging on the inside. I sit down with Dr. Abud Bakri, a board-certified internal medicine physician and hospitalist who founded Systems, a performance and longevity practice built around treating the body system by system rather than symptom by symptom. We start with the foundations that determine whether any advanced intervention can actually work: light exposure, circadian…