Re:Age is a quiet, evidence-based exploration of time, the body, and longevity — steady, reflective episodes where clinical science is delivered with calm precision. A contemplative space for understanding the biology of aging and the principles that support a longer, better life.
drrheakotecha.substack.com (https://drrheakotecha.substack.com?utm_medium=podcast)
https://longevity.technology/news/lilly-races-to-become-first-longevity-big-pharma/
https://www.technologyreview.com/2026/10/06/1145836/weight-loss-drugs-glp1-lilly-novo-aging-clocks
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15 Sept 2026
The Blue Zones might not be real but the habits still are.
I was recently interviewed for a Marie Claire piece on the blue zones, article found here (https://www.marieclaire.co.uk/health-fitness/wellbeing/blue-zone-habits-review), and it made me question something I hadn’t really thought about – something slightly uncomfortable. I often talk about the Blue Zones, with my patients in a consult or on a panel discussion and even often on my Instagram or other public facing commentary, yet the data behind some of these populations is a bit shaky. Knowing this, and being a scientist…why do I keep recommending the habits anyway?
Ready? Let’s dive in…
This is a public episode. If you would like to discuss this with other subscribers or get access to bonus episodes, visit drrheakotecha.substack.com (https://drrheakotecha.substack.com?utm_medium=podcast&utm_campaign=CTA_1)
4 Sept 2026
The small gland quietly deciding how fast you age
Thyroid disease: symptoms, suffering in silence and wht the evidence really says about autoimmunity
This is a public episode. If you would like to discuss this with other subscribers or get access to bonus episodes, visit drrheakotecha.substack.com (https://drrheakotecha.substack.com?utm_medium=podcast&utm_campaign=CTA_1)
21 Aug 2026
The Heart That Changed Shape in a Night: "She Died of a Broken Heart"
There is a phrase people use at funerals, “she died of a broken heart.” We say it the way we say the sun rises, knowing perfectly well that it does not, using the sentence for what it carries rather than for what it claims.
I used to file it under sentiment: heart attacks were plumbing, something narrows, something ruptures, a clot forms, muscle downstream starts to die and grief was in the mind, and the mind, I assumed, stayed in its lane, until i learnt about what happened in Niigata
This is a public episode. If you would like to discuss this with other subscribers or get access to bonus episodes, visit drrheakotecha.substack.com (https://drrheakotecha.substack.com?utm_medium=podcast&utm_campaign=CTA_1)
10 Jul 2026
The Man Who Optimised Everything and Still Got Autoimmunity
Bryan Johnson built his life around the belief that biological decline could be negotiated with. Measured, tracked, interrogated and adjusted, every part of the body became something to watch more closely.
He did not merely become interested in health. He turned his body into a living experiment in control.
And then came the sentence that made the whole project feel suddenly more human.
“My stomach is eating itself.”
This is a public episode. If you would like to discuss this with other subscribers or get access to bonus episodes, visit drrheakotecha.substack.com (https://drrheakotecha.substack.com?utm_medium=podcast&utm_campaign=CTA_1)
21 May 2026
The Shape of Medicine: From interruption to trajectory, and the birth of the longevity physician.
A healthy 37-year-old man almost skipped his appointment. What we found changed everything.
This episode explores the shift from a world of sudden death to one of slow disease, and why the future of medicine lies not in treating illness after it appears, but in recognising biological change while there is still time to alter the trajectory.
This is a public episode. If you would like to discuss this with other subscribers or get access to bonus episodes, visit drrheakotecha.substack.com (https://drrheakotecha.substack.com?utm_medium=podcast&utm_campaign=CTA_1)
14 May 2026
Microplastics, PCOS/PMOS & the Quiet Erosion of Fertility
This episode explores one of the biggest conversations emerging in health right now: microplastics, endocrine disruption and the quiet erosion of fertility.
From PCOS (recently renamed PMOS) and hormonal signalling to inflammation, oxidative stress and IVF outcomes, we examine how modern environmental exposures may be influencing reproductive health in ways medicine is only beginning to understand.
It’s a conversation about fertility, modern life and the invisible exposures the body is now adapting to every single day.
This is a public episode. If you would like to discuss this with other subscribers or get access to bonus episodes, visit drrheakotecha.substack.com (https://drrheakotecha.substack.com?utm_medium=podcast&utm_campaign=CTA_1)
6 May 2026
Wearables and the Body that Forgot How to Listen
In this episode, I explore what wearables are actually showing us, not just data, but the loss of our ability to feel ourselves clearly. From heart rate variability to sleep and glucose, these devices are not creating new information. They are restoring access to signals we’ve become disconnected from.
I walk through the physiology behind what your wearable is measuring, why behaviour changes when biology becomes visible, and where these tools can both help and harm. This is not about optimisation. It is about awareness, pattern recognition, and intervening earlier, while the body is still adaptable.
The question is not which wearable to buy.It is what has changed in your life that you need one to see what your body is already trying to tell you.
This is a public episode. If you would like to discuss this with other subscribers or get access to bonus episodes, visit drrheakotecha.substack.com (https://drrheakotecha.substack.com?utm_medium=podcast&utm_campaign=CTA_1)
30 Apr 2026
The Disconnection State: Why loneliness is driving biological ageing in ways we are only beginning to measure
In this episode, we examine loneliness as a chronic biological stressor. Associated with a mortality risk similar to smoking 15 cigarettes a day, it can accelerate biological ageing by around four years. We unpack how this shapes the nervous system, immunity, and aging itself.
This is a public episode. If you would like to discuss this with other subscribers or get access to bonus episodes, visit drrheakotecha.substack.com (https://drrheakotecha.substack.com?utm_medium=podcast&utm_campaign=CTA_1)
20 Apr 2026
The Peptide Age
Peptides are everywhere right now. Promising faster recovery, better sleep, and improved muscle repair. But what do they actually do and why do so many people feel like they need them? This episode breaks down the science, the hype, and what the peptide trend reveals about modern biology.
This is a public episode. If you would like to discuss this with other subscribers or get access to bonus episodes, visit drrheakotecha.substack.com (https://drrheakotecha.substack.com?utm_medium=podcast&utm_campaign=CTA_1)
13 Apr 2026
The most important lesson I learnt in Japan
This piece is also available with Apple Podcasts and Spotify under “RE:Age Reflections on Body, Time and Longevity”.
This is a public episode. If you would like to discuss this with other subscribers or get access to bonus episodes, visit drrheakotecha.substack.com (https://drrheakotecha.substack.com?utm_medium=podcast&utm_campaign=CTA_1)
10 Apr 2026
The Sunlight Deficit
This is a public episode. If you would like to discuss this with other subscribers or get access to bonus episodes, visit drrheakotecha.substack.com (https://drrheakotecha.substack.com?utm_medium=podcast&utm_campaign=CTA_1)
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