My followers from Medium can read this chapter via this link.
Dear Subscribers,
Yesterday, I completed the second volume of my memoirs about my health improvement, which was published as a preorder today. The first volume, which covers my writing and book authoring experience reflecting my meditative practices, will be available at the end of this month. Volume II, which I introduce in this post, is scheduled for 16 December 2025. Non-members can read this and my other stories on my blog page.
This volume is close to my heart as it reflects my health transformation from my 20s to 60s, honestly and transparently, with ups and downs, including 40 years of memoirs with scientific rigor and practical tips.
In my 20s, I trusted mainstream health advice like eat less fat, move more, and take pills when numbers rise. But following that path left me trapped in prediabetes, abdominal obesity, arthritis, chronic inflammation, leaky gut, and relentless brain fog.
By the time I turned 30, my health was slipping into dangerous territory. That was when I decided to reclaim my life, not as a patient, but as a curious postdoctoral researcher and sensible biohacker.
This book is the story of how two overlooked molecules, Beta-Hydroxybutyrate (BHB) and Brain-Derived Neurotrophic Factor (BDNF), became my lifeline. They helped me rewire my brain, restore my metabolism, and rebuild my immune system. They gave me back the clarity, energy, and joy I thought I had lost forever.
But this book is not just my memoir. It is an invitation for you to see what is possible when science, curiosity, and lived experience meet. My journey will not mirror yours, but the lessons I learned can inspire you to look at your own health through a new lens.
With the guidance of qualified healthcare professionals, you can adapt the principles I used — fasting, nutritional ketosis, exercise, stress reduction, and lifestyle shifts — to your own context. The value of this book lies in the perspectives, insights, and practical examples it offers for anyone who wants to move from struggling to thriving.
I turned my body into a laboratory, testing approaches with care, science, and common sense. My experiments included time-restricted eating, intermittent fasting, caloric deficit, a ketogenic diet, intense exercise, and lowering chronically elevated cortisol through stress management.
Later, I expanded into long-term fasting, also known as periodic fasting, which I practiced for three to ten days, four times a year. Periodic fasting put me into deep ketosis, giving me euphoric moments as I mentioned in this chapter while introducing ketone bodies.
These strategies helped me become more insulin sensitive, optimize cortisol, balance other hormones, and address every factor of metabolic syndrome without medication or surgery.
The results were extraordinary: my blood sugar normalized, inflammation subsided, arthritis eased, abdominal fat melted, gut integrity improved, lipids balanced, and brain fog lifted.
Beyond repair, I found prevention, and for the first time in my life, I gained six-pack abs on my 50th birthday. My biomarkers now show optimal ranges past sixty, suggesting resilience against diabetes, cardiovascular disease, dementia, Alzheimer’s, and perhaps even certain cancers.
I blend decades of research with personal observation to show how BHB and BDNF influence metabolic, mental, and immune health. Each chapter combines story, science, and reflection with practical ideas you can discuss with your own health team.
This is a specialized memoir and follow-up on my previous books in my Health, Wellness, and Cognitive Performance Series, including Cortisol Clarity, Train Your Brain for a Healthier and Happier Life, Cellular Intelligence, Lifespan Mastery, and Sensible Biohacks that Changed My Life.
To make my 300,000+-page research journal in biochemistry accessible, I distilled it into a 40,000-word book (200 pages). With the help of Hemingway Editor, I simplified complex material to a Grade 7 level so that readers without a science or technology background could follow along.
My goal is to offer you the same life-changing insights I discovered, presented in a way that is both clear and practical.
I offer nuanced perspectives shaped by lived experiences and the growing scientific literature in the last four decades.
I wrote this memoir with complete honesty and transparency from the heart, mind, and spirit, sharing both the highs and lows to empower you with knowledge, hope, and tools to explore.
If you approach this book with an open mind, it may challenge what you have been told and help you craft a healthier and happier future at any age.
The digital version of this unique memoir, reflecting my four decades of health transformation, is now available for preorder via multiple bookstores.
I will soon share the beta version as digital (EPUB, PDF, MOBI) and audio (MP3) on my discount bookstore and also in my Health and Wellness Network publication on Substack for members.
Mother Nature’s Masterpiece: The Molecule That Restores, Protects, and Propels Deserves a Book
I wrote many stories explaining the fundamental requirements of the brain and nervous system with nuances in previous stories, so I link them as reference here:
The Brain Needs 4 Types of Workouts
The Brain Needs 3 Types of Rest
The Brain Needs 3 Types of Nutrition
Here’s How to Make the Nervous System More Flexible and Functional
Here’s How I Train My Brain Daily for Mental Clarity and Intellectual Productivity.
You can find many relevant stories about brain health and cognitive performance on this list.
I also wrote several stories about ketosis and the ketogenic lifestyle, reflecting my experiences and literature reviews, which you can find in the following list:
As mentioned yesterday, our content ecosystem is growing rapidly, which will make the Substack Mastery Boost a global service in January 2026. This program excites me as it will help many creators, book authors, and content startups with low-cost educational and marketing support.
I have established multiple networks, including Superlearners, Health and Wellness, Freelancers, Technology Experts, Gamers, Book Authors, Scholars, the Writing Academy, Expert Contributors Network, and finally Affiliate Marketers Network, which will integrate with the Substack Mastery Boost program at Digitalmehmet.com, Substackmastery.com, and Illumination.com sites.
Thank you for reading my story, joining my networks, and being part of my joyful community on Medium, Substack, and Patreon.
I invite you to subscribe to my publications on Substack, where I offer experience-based and original content on health, content strategy, book authoring, and technology topics you can’t find online to inform and inspire my readers.
Content Strategy, Development, & Marketing Insights
Technology Excellence and Leadership
Healthspan Mastery (NEW)
If you are a writer, you are welcome to join my publications by sending a request via this link. I support 38K writers who contribute to my publications on this platform. You can contact me via my website. If you are a new writer, check out my writing list to find some helpful stories for your education. You can also join my author platform as a guest blogger.
If you are a book author, I offer editing, publishing, and marketing help to 100 experts as a pilot based on a revenue-sharing model without any upfront payment. 70 writers from Medium and 691 writers from Substack have already applied for it, but I cannot do more than 100 in 2026. I will scale it after the success of the pilot. I wrote a story about it lately.
Why Am I Investing 3,000 Hours of Editing and Publishing with $0 Upfront Payment for 2026?
Empowering 100 experts to publish books isn’t just an investment of time, but a commitment to knowledge, legacy, and…medium.com
What’s Expert Contributor Network at Digitalmehmet — The Digitalmehmet Content Ecosystem
Welcome to the Expert Contributor Network Curation Program at Digitalmehmet Content Ecosystem
I created this new initiative to empower experts and help them transition to the eminence path with community support…medium.com
You can find out about my scholarly work on my Google Scholar or Bohrium profiles and journalism at Muck Rack. Some of my technical credentials on Credly. As a new instructor, my Udemy profile includes 4 Substack courses, and I will publish more soon.
You may check out my other most loved stories on this platform.
Here are links to my FEATURED series of 50+ books on Amazon markets:
Health, Wellness, and Cognitive Performance Series
Technology Excellence and Leadership Series
Substack Newsletter Mastery, Excellence, and Eminence Series
Check out my books at Apple Stores, Smashwords, Vivlio, Kobo, Barnes & Noble, BooskaMillion, Fable, or my discount bookstore.
Get an email whenever Dr Mehmet Yildiz publishes. He is a top writer and editor on Medium.
You may enjoy this comprehensive free book chapter I wrote for technology, enterprise, and business Architects as a gift: What Is a Digital Transformation Architect? — The Digitalmehmet Content Ecosystem. Check out my updated posts on YouTube.
Explore some of my books including: Train Your Brain for a Healthier and Happier Life, Cortisol Clarity, The Mysterious Leadership Mind of Robert F. Kennedy Jr., Substack Mastery Version 2, Monetize Your Passion with WooCommerce, Agile Business Architecture for Digital Transformation V2, Agile Business Architecture for Digital Transformation (Audiobook), A Powerful Toolkit for Substack Newsletter Mastery, Smart and Ethical SEO, Modern Affiliate Marketing for Writers, 4 Pillars of Enterprise Architecture, and Smart Email Marketing Content Integration.
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