Sorry. I claim zero knowledge of epidemiological obesity studies or theories. In retrospect, it was not my place to conjecture at all --- I really don&#x27;t know anything about this.<p>Although for a thoughtful and thorough analysis:<p>An introductory wikipedia article: <a href="https:&#x2F;&#x2F;en.wikipedia.org&#x2F;wiki&#x2F;Epidemiology_of_obesity" rel="nofollow">https:&#x2F;&#x2F;en.wikipedia.org&#x2F;wiki&#x2F;Epidemiology_of_obesity</a><p>Google scholar search: <a href="https:&#x2F;&#x2F;scholar.google.com&#x2F;scholar?q=epidemiological+obesity" rel="nofollow">https:&#x2F;&#x2F;scholar.google.com&#x2F;scholar?q=epidemiological+obesity</a>