Why Cancer Loves Sugar, Low Oxygen, and Stress

Most people have no idea how deeply everyday plastics are tied to hormone health, fertility, and even cancer risk. In this episode, Dr. Brad talks with public health researcher Dave Roberts about the science most of the health industry never mentions. Dave shares how his background in biomedical engineering and public health led him into toxin research — a path that became deeply personal after his late wife's breast cancer diagnosis. Together, he and Dr. Brad break down how microplastics act as endocrine disruptors (mimicking estrogen and affecting fertility, puberty, and hormone balance), why cancer has a measurable metabolic foundation tied to glucose, oxygen, and stress hormones, and why so much published health research contains more "spin" than solid evidence. They also get into a real-world experiment on how just three days of different diets can reshape the gut microbiome, and why a simple fast-food meal can visibly change your blood. This episode is for anyone dealing with unexplained hormone symptoms, fertility concerns, or a general sense that something in their environment or diet is working against their health — and who wants the actual mechanisms, not just a symptom checklist. Curious how this connects to your own health? Book a consult at healthfullyu.com, or stay tuned for part two of this conversation. Topics: - functional medicine - root cause healing - toxic load - microplastics and hormones - BPA endocrine disruptors - gut microbiome health - cancer and metabolic health - environmental toxins - chronic illness recovery - hormone health Chapters: 00:06 - Meet Dave Roberts: from engineering to public health research 04:21 - Microplastics, BPA, and hormone disruption 08:52 - The real metabolic drivers behind cancer Summary: Dr. Brad sits down with public health researcher Dave Roberts to unpack how microplastics disrupt hormones, what actually drives cancer at the metabolic level, and why the health industry keeps missing the root cause. Guest: Dave Roberts, public health researcher affiliated with MARA Labs — mara-labs.com If unexplained hormone symptoms or toxic load concerns sound familiar, book a consult at healthfullyu.com — or catch part two of this conversation.