The Mission & Methdology
We treat human healthspan as an engineering problem. This platform provides demanding professionals with data-driven protocols to optimize cognitive resilience, functional longevity, and strategic recovery.
The Mission
Society accepts that physical and cognitive decline are inevitable byproducts of aging and high-pressure careers. We look at the clinical data, and we disagree.
One’s Best Self exists for one specific purpose: to help high-performing professionals push the boundaries of their Healthspan—the period of life spent in peak physical and mental condition. We cut through the noise of the wellness industry to deliver what actually works for the executive physiology. No fads. No temporary hacks. Just peer-reviewed science, simplified and applied to a demanding lifestyle.
Who We Are For
You have spent your career building your expertise, your business, and your legacy. But too often, the biological machine that powers it all gets left on autopilot.
High-performers do not have the time or patience for two-hour morning routines or conflicting diet advice. You need systems with a clear ROI:
Clarity: What does the peer-reviewed research actually say about extending healthspan?
Efficiency: What is the minimum effective dose of training required to prevent biological decline and protect joint architecture?
The Cognitive Edge: How do we maintain neuroplasticity, manage cortisol, and sustain absolute focus in high-stakes environments?
Our Methodology: The Triad of Healthspan
We view human performance through three interconnected systems. Neglecting one destabilizes the others.
1. Mind (Cognitive Architecture) Cognitive longevity is not just about “reducing stress.” We explore the neuroscience of focus, cortisol management, and executive resilience. We provide the protocols to manage high-functioning environments and keep your brain sharp, adaptable, and resistant to decline.
2. Body (Functional Longevity) Your career demands endurance; your body requires the same. We focus on evidence-based inputs: Metabolic Health (controlling systemic inflammation), Functional Strength (protecting bone density and muscle mass), and Recovery Science (optimizing sleep architecture as the foundation of performance).
3. Play (Strategic Recovery) This is where most high-achievers fail. Play is not a waste of time—it is a biological necessity for neuroplasticity and autonomic down-regulation. Whether it is deep flow states, social vitality, or active detachment, we treat Play as strategic recovery. It is the ultimate counterbalance to executive burnout.
Evidence-Based Commitment
The modern wellness industry is plagued by statistical noise and pseudoscience. One’s Best Self is built differently.
We rely strictly on peer-reviewed clinical data (PubMed, The Lancet, etc.).
We aggressively separate clinical evidence from anecdotal trends.
We collaborate with subject-matter experts—psychologists, nutritionists, and movement specialists—to validate our frameworks.
Meet the Founder: Rhiannon Thomas
At One’s Best Self, we believe optimizing healthspan requires rigorous science combined with an executive mindset.
Originally from Wales and currently navigating the high-pressure corporate environment of London, my professional life has been defined by understanding human behavior and complex systems. With a formal degree in Psychology and as a Fellow of the Chartered Management Institute, I know exactly what it takes to lead effectively under stress.
But true performance doesn’t end in the boardroom. As a qualified fitness professional and a dedicated researcher of longevity and nutritional science, I treat the human body with the exact same strategic rigor.
Editorial & Evidence Standards
Our Commitment to Scientific Integrity At One’s Best Self, our mission is to provide high-performing professionals with actionable, science-backed protocols for the mind, body, and play. In a world of wellness noise and conflicting trends, we believe you deserve clarity grounded in rigorous science.
To maintain your trust and ensure the highest quality of information, our team adheres strictly to the following editorial and evidence standards.
1. The Evidence We Trust
We do not rely on wellness fads, social media trends, or anecdotal claims. We evaluate primary research and authoritative sources to form our protocols. When researching a topic, we prioritize the highest levels of scientific evidence:
Systematic Reviews & Meta-Analyses: We look for comprehensive reviews that analyze multiple studies to find the consensus of the scientific community.
Peer-Reviewed Clinical Trials: We rely on randomized controlled trials (RCTs) published in reputable, peer-reviewed medical and scientific journals (such as those indexed on PubMed).
Authoritative Guidelines: We consult established clinical guidelines and consensus statements from recognized health organizations and professional bodies.
2. Authorship and Fact-Checking
Every piece of content on Ones Best Self is crafted by professionals with relevant expertise.
Expert Content: Our articles are written and reviewed by individuals who understand the nuances of healthspan, cognitive performance, and recovery.
Editorial Review: Before publication, articles undergo an internal review to ensure claims are accurately supported by the cited literature.
3. Continuous Updates
Science is an iterative process, and our understanding of human performance constantly evolves.
Periodic Review: We actively monitor the scientific landscape. We periodically review our published content to ensure it remains accurate and is updated as evidence evolves.
If new, high-quality research emerges that contradicts or refines a previous protocol, we will update the content to reflect the current scientific consensus.
4. Independence and Transparency
We maintain a strict boundary between our editorial integrity and any monetization efforts.
Unbiased Recommendations: While we may use affiliate links or partner with brands to support the site, these relationships do not influence our editorial content or alter our evidence standards.
We only recommend products or protocols that we genuinely believe in and that align with our scientific criteria. For more details, please see our Affiliate Disclosure.