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by Mary Ellen Wiltrout
This MIT Learn podcast connects high-level research and the human heart with Mary Ellen Wiltrout as the host. The show features world-class experts with a unique dual perspective: a deep scientific understanding of a disease and a personal connection to the health topic. Listeners will gain a foundational understanding of the science underlying research of complex health subjects, from cancer to infection to personalized medicine while learning about the people behind scientific research. The Beyond Biology podcast offers inspirational lessons of perseverance, empathy, and the power of a growth mindset. By exploring the individual story and their expertise, the podcast demonstrates how health and individual career journeys transform the way we approach scientific discovery. At MIT, Mary Ellen Wiltrout, PhD is a Senior Lecturer and Director of Online and Blended Learning Initiatives in Biology and Academic Director, DELTA Science and Academic Lead of Universal Biology in Open Learning.
Latest Episodes
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- 3 days ago39 min
Personalized Medicine, Diabetes, and AI with Dimitris Bertsimas
In this MIT Learn Beyond Biology episode, MIT professor Dimitris Bertsimas joins Mary Ellen Wiltrout to share how advances in data and AI are helping healthcare move beyond one-size-fits-all treatment. Dimitris discusses how operations research, AI, and patient data could help make medicine more personal with a focus on diabetes care. Dimitris shares how family experiences shaped his healthcare research, including work using electronic medical records to help personalize diabetes treatment. He also explains how genomic data could support earlier intervention, why sharing anonymized health data matters, and how AI might help clinicians make decisions without replacing their judgment. The conversation ranges from optimizing Panama Canal operations to the future of personalized medicine and lifelong learning. Dimitris Bertsimas is the Vice Provost for Open Learning, the Associate Dean of Online Education and Artificial Intelligence, Sloan, and the Boeing Professor of Operations Research.Key TopicsWhat operations research is: Dimitris defines operations research as a scientific approach to designing, improving, and optimizing systems, with applications ranging from transportation to healthcare.A real-world optimization example: He recounts how modeling helped improve vessel scheduling and throughput at the Panama Canal.Why healthcare became a focus: The experiences of losing his father to gastric cancer and his mother to diabetes deepened his commitment to healthcare research.Personalizing diabetes care: His team worked with long-term electronic medical records to study how treatment combinations could be tailored to individual patients.The role of genomics: Dimitris discusses research into beta cell decline and the potential to identify diabetes risk earlier.His view of AI: He distinguishes analytics using structured data from AI approaches that can work with unstructured data, such as text and images.Why data sharing matters: He explains how anonymized patient data can support research while removing identifying details.AI in emergency departments: His group is piloting systems that combine triage notes and patient records to provide clinicians with a differential diagnosis and test suggestions.AI as clinical support: Dimitris emphasizes that AI should advise and assist; physicians remain responsible for decisions.Lifelong learning: He reflects on adapting to new fields and shares how MIT Open Learning serves learners at different stages of life.Timestamps00:00 Why medicine is still largely not personalized01:13 What operations research means02:15 Using optimization to improve Panama Canal operations04:10 How family experiences led Dimitris toward healthcare research05:53 Why diabetes became a personal and research priority06:29 Type 2 diabetes and approaches to managing the disease09:10 Studying long-term diabetes records10:08 Using patient history to guide treatment choices11:03 Early AI research in personalized diabetes care12:24 Studying beta cell decline with genomic research13:47 Dimitris’ distinction between analytics and AI15:47 What personalized or precision medicine means16:45 A personal story illustrating why cancer treatment can affect patients differently18:22 How continuous glucose monitoring informs Dimitris’ own diabetes management20:44 Why sharing anonymized health data can advance research23:09 How anonymization works24:47 Generative AI pilots for emergency department diagnosis support26:15 Using AI to suggest diagnoses and tests for physician review27:13 Reported effects on emergency department stays and insurance test rejections28:44 Why AI should advise rather than make medical decisions30:38 Dimitris’ five-year outlook for personalized medicine33:03 Adaptiveness, impact, and continuous learning35:29 Applying ideas through entrepreneurship and iteration36:51 MIT Open Learning and lifelong learning resources
- 4 weeks ago47 min
The Heart of a Scientist with Alan D. Grossman
MIT biology professor Alan D. Grossman shares the story of his medical crisis that began with unexpected lightheadedness on campus in 2002 and led to a heart in 2006. The conversation traces the medical details of sarcoidosis, heart failure, immunosuppression, and recovery, while also showing how Alan kept teaching, mentoring, and leading through it all. After listening, you will gain a broader appreciation of resilience, rare disease research, and the life-saving impact of organ donation. Mary Ellen Wiltrout guides the story from diagnosis to transplant to leadership during the pandemic, with Alan reflecting on what changed in his work, priorities, and perspective.Key topicsAlan Grossman explains why his heart does not race when he gets nervous.He shares the day his health changed in July 2002.The initial diagnosis was heart block, which led to a pacemaker.Grossman discusses sarcoidosis, a rare inflammatory autoimmune disease that in his case attacked only the heart.He describes trying immunosuppression and anti-inflammatory treatment.As symptoms advanced, he developed heart failure.He explains how transplant candidacy depends not only on medical severity but also on support systems, infection risk, and the ability to survive the demanding post-transplant period.Grossman walks through how heart transplant surgery is physically straightforward but medically complex because rejection prevention is the real challenge.He explains the role of antibodies and cell markers in the immune system’s response to a transplanted organ.He recounts waiting more than a year for a heart, including one false alarm before the actual transplant offer in 2006.He describes the immediate post-op period, including high-dose steroids, hallucinations, pain, and a broken rib discovered later on an X-ray.He reflects on returning to work, rebuilding his lab, restarting teaching, and later helping create the microbiology graduate program at MIT.He talks about how surviving severe illness made him both more patient and less patient in different ways, and more willing to focus on what he can control.He explains leading the biology department during the pandemic and why his own long experience with immunosuppression shaped his caution around COVID.The episode closes with a direct call to register as an organ donor and to make those wishes known to your family.Timestamps00:00 - Why a transplanted heart does not respond to nerves00:31 - Introducing Alan D. Grossman and the heart transplant story01:37 - Living with a denervated transplanted heart02:29 - The first symptoms on a hot day walking to work04:11 - Heart block, ambulance ride, and pacemaker placement05:39 - What a pacemaker does and why the diagnosis was not a heart attack06:32 - Diagnosing sarcoidosis and the mystery of organ-specific autoimmune disease08:09 - Why a scientist wants to understand a rare disease09:24 - Immunosuppression, inflammation, and why treatment did not stop progression12:37 - From early normal life to heart failure symptoms13:39 - The strict low-sodium and low-fluid strategy14:18 - Why transplant became necessary15:37 - What transplant candidacy requires beyond medical need17:05 - Why transplant surgery is simple on paper but hard biologically18:09 - How the immune system recognizes a donated heart as foreign19:06 - Post-transplant immunosuppression and long-term medication20:25 - Waiting for a heart and the role of arrhythmia and defibrillator support21:35 - What a defibrillator shock feels like23:27 - Months in the hospital and staying connected to work24:30 - Lab meetings from home and mentoring during illness25:32 - Focusing on what can still be controlled27:30 - The false alarm before the real heart became available28:29 - The transplant day and why he could not eat29:35 - Antibodies, compatibility, and the call that the heart was his30:42 - Steroids, hallucinations, and the rough early recovery31:18 - Pain, a broken rib, and the weeks after surgery32:17 - Going home, returning to MIT, and rebuilding the lab34:18 - Realizing he could create a microbiology graduate program35:37 - How severe illness changed patience, perspective, and administration37:22 - Becoming department head after first trying to avoid the role39:21 - The department’s shift toward online learning during COVID40:31 - Why the pandemic’s early work-from-home shift was easier than returning42:42 - Leading through uncertainty by emphasizing communication and connection44:27 - A message on organ donation and transplantation45:11 - How to register as an org
- Aug 3, 202650 min
How Parasites Are More Common Than You Think with Sebastian Lourido
DescriptionDiscover the fascinating world of parasites and their complex relationships with humans through an insightful conversation with Sebastian Lourido, a molecular parasitologist at MIT. This MIT Learn Beyond Biology episode goes into the diversity of parasites and how they infect humans, with a focus on Toxoplasma gondii but not leaving out Cyclospora. The discussion includes insights on the cutting-edge tools that scientists use to understand parasites. Sebastian also shares the story of his own encounter with the parasite that he now studies and how he thinks about science from his artistic perspective.ResourcesThe video of this episode at learn.mit.eduLearn more about cell biology courses at learn.mit.eduSebastian Lourido's Lab at MITKey TopicsWhat are parasites? Definitions, types, and their relationship with hostsThe diversity of parasites: from tiny cells and worms to insects and their transmission methodsHow parasites like Toxoplasma gondii and malaria impact human health globallyThe life cycle of Toxoplasma and its ability to persist silently in the bodyAdvances in genetic tools, focusing on CRISPR, revolutionizing parasite researchPotential for new therapies based on understanding parasite biologyThe intersection of art and science: Sebastian’s unique journey combining visual arts and biologyTimestamps00:00 - The significance of parasite infections and their prevalence02:00 - Defining parasites: from general organisms to clinical pathogens04:10 - The diversity within parasites: from insects to single-celled eukaryotes06:33 - Unique biological adaptations of parasites in harsh environments08:01 - Common parasitic infections: soil-transmitted worms, Toxoplasma, malaria, and Chagas disease10:24 - How water and food contribute to parasite transmission13:11 - Deep dive into Toxoplasma gondii: global prevalence and health effects15:33 - Personal story: contracting toxoplasma after traveling in France19:14 - Risks of toxoplasma during pregnancy and effects on the fetus22:33 - Why Toxoplasma is considered a neglected tropical disease25:30 - Challenges in diagnosing parasitic infections in the US29:49 - How parasites invade host cells: unique mechanisms of Toxoplasma36:56 - Tools and techniques: the impact of CRISPR on parasitology research42:14 - Resistance challenges and the importance of understanding parasite genetics43:13 - The intersection of art and science: Sebastian’s background and approach to research47:03 - Varieties of scientific inquiry: discovery versus analytical approaches48:30 - Visual communication in science and Sebastian’s artistic influence49:58 - Resources for further exploration and academic opportunities at MIT
- Jul 6, 202640 min
The Fundamentals of Understanding Cancer Genetics with Summer Morrill
DescriptionIn this episode of the MIT Learn Beyond Biology podcast, Dr. Summer Morrill, a high school biology teacher with deep roots in cancer genetics from her PhD work at MIT, unpacks the complex topic of cancer. Summer shares how her personal family history shaped her interest in the field, why cancer is not one disease, and how fundamental biology research helps explain everything from DNA repair to tumor suppression in humans.This conversation is both scientifically rich and deeply human. This episode represents the reality that cancer research is not only about cells and mutations, but also about families, mentorship, resilience, and the ongoing search for answers. Learn more about biology and genetics at learn.mit.edu.Resources7.00x Introductory Biology courseVideo of this episodeKey TopicsWhy having the BRCA1 gene is usually a misunderstandingHow inherited mutations can increase cancer riskWhy cancer is not a single diseaseWhat the cell cycle is and how the process can go wrongThe difference between oncogenes, tumor suppressors, and DNA repair genesHow genetic testing and counseling can be empoweringWhy yeast is such a powerful model organism in cancer researchWhat haploinsufficiency means and why it mattersHow curiosity, failure, and mentorship shape scientific discoveryWhy cancer research requires many different disciplines working togetherTakeawaysSummer explains that cancer often develops through a combination of mutations, environmental exposure, and the body’s own normal processes of cell division and DNA repair. She also highlights why the idea of a simple cure is misleading: cancer involves many pathways, many tissues, and many biological checks and balances.A major theme of the conversation is balance. Too little activity in a gene can be harmful, but too much can also cause problems. Summer’s research on haploinsufficiency showed that the body’s systems are more delicate and interconnected than they first appear.The episode also emphasizes the value of curiosity and mentorship. From her professors to her advisor to her mentor Professor Angelika Amon, Summer’s path shows how the right people at the right time can shape a scientific career.
- Jun 1, 202644 min
Inside the Cell: Why Pathogens are the World’s Best Cell Biologists with Becky Lamason
Description:Understanding how bacteria evade our immune systems and cause disease is vital for developing better treatments and diagnostics. In this MIT Learn Beyond Biology episode, MIT professor Becky Lamason shares her insights on bacterial pathogens, their interaction with human cells, and the future of infectious disease research. This discussion reveals not only the complexity of microbes but also how innovative science can uncover new paradigms in host-pathogen interactions. Stay to the end to learn more about Becky’s personal path to the lab.Resources:MIT Learn online cell biology coursesVideo of this episodeMIT Department of Biology Profile of Becky LamasonKey topics:How bacterial pathogens break the rules of survival and adaptationExamples of bacterial infections and the dangers they pose—Listeria, Rickettsia, Salmonella, VibrioThe unique strategies bacteria use to invade and persist inside human cellsThe difference between bacterial, viral, fungal, and parasitic pathogensAntibiotic resistance: development, implications, and the importance of proper useHow bacterial size and shape compare to human cellsMechanisms of bacterial entry into cells via force or protein tricksThe obligate dependence of certain bacteria like Rickettsia on living inside host cellsThe tick transmission cycle and how bacteria jump from vectors into humansCell-to-cell spread of bacteria and the importance of intracellular movementThe role of modern tools—genetics, microscopy, genome editing—in understanding pathogen biologyFuture directions: expanding research to environmental vectors, developing broad-spectrum diagnostics, and leveraging new technologiesTimestamps:00:00 - The unpredictability of pathogens and their survival strategies00:24 - Introduction to Becky Lamason and the importance of bacterial pathogens01:08 - Common bacterial pathogens and infections in daily life01:33 - Food recalls and bacterial contamination in the environment02:13 - Focus on Listeria monocytogenes and clinical implications02:41 - Other bacteria like Rickettsia and their deadly potential03:15 - Symptoms of spotted fevers caused by Rickettsia03:20 - The range of bacterial disease symptoms and severity04:01 - Categorizing pathogens: bacteria, viruses, fungi, and parasites04:28 - Bacteria’s size relative to other microbes and complexity05:04 - The diversity within bacterial pathogens and their unique features05:20 - Treatment options for bacterial infections and antibiotic sensitivity05:48 - Antibiotic resistance: evolution, biology, and clinical impact06:26 - Practical advice: importance of completing antibiotic courses08:02 - The analogy of pathogens as cell biologists and their survival tactics08:41 - Bacteria’s ability to break rules of host cell biology11:25 - Comparing bacterial size to human cells; visualization of scale12:19 - How bacteria enter human cells through force or mimicry12:33 - The dependency of certain bacteria on living inside host cells15:28 - Transmission cycles involving ticks and environmental reservoirs17:28 - Mechanisms of bacterial cell spreading and invasion strategies19:00 - The concept of acute infection phases and bacterial proliferation20:14 - The ultimate goal of bacteria: replication and dissemination21:28 - Safety measures in the lab working with pathogenic bacteria23:33 - Connecting basic research to clinical applications and diagnostics25:09 - The power of microscopy and visual data in understanding infection27:38 - Memorable discoveries and unexpected breakthroughs in the lab29:28 - Future tech: genome editing, large-scale genetic analysis, and new directions31:33 - The significance of bacteria targeting host cell organelles like ER and nuclei33:01 - Becky’s journey, switching questions and embracing multidisciplinary work35:41 - Building community and embracing the unknown in scientific research37:25 - From high school curiosity to MIT professor: Becky’s personal story39:56 - Balancing real-world jobs and academic pursuits42:12 - The future of bacterial research: new tools and broader applications44:02 - Final thoughts and encouragement to explore and collaborate
- May 4, 202645 min
Unlocking Brain Plasticity: Treating Blindness in India with Pawan Sinha
In this episode, MIT Professor Pawan Sinha delves into the science of vision, brain plasticity, and the transformative power of scientific innovation in addressing global health challenges. Discover how research on early visual deprivation has shaped our understanding of neural development, and explore the inspirational journey of his nonprofit, Project Prakash, transforming lives in India.In this episode:The historical context of the 1981 Nobel Prize on critical periods in vision developmentThe mechanisms of visual processing in the brain, as discovered by Hubel and WieselThe role and surprising findings from the monocular deprivation studies in kittensHow William James' description of a newborn's sensory experience relates to visual developmentThe personal story of Darius, Professor Sinha's son, and its impact on his researchThe global challenge of childhood blindness, especially in India, and the potential for treatmentThe surgical process and scientific opportunities provided by early intervention in cataract casesThe experimental insights into how dynamic perception plays a crucial role in visual developmentThe founding, achievements, and ongoing work of Project Prakash over the past 21 yearsThe educational impact of immersive global experiences for MIT students in IndiaA discussion on autism, sensory sensitivities, and the link with visual processing differencesThe importance of challenging received wisdom and embracing scientific curiosity for advancing knowledgeMIT Learn: MIT’s hub for a growing collection of lifelong learning experiencesProject Prakash: To learn about Pawan Sinha's ongoing work in India
About Beyond Biology
This MIT Learn podcast connects high-level research and the human heart with Mary Ellen Wiltrout as the host. The show features world-class experts with a unique dual perspective: a deep scientific understanding of a disease and a personal connection to the health topic. Listeners will gain a foundational understanding of the science underlying research of complex health subjects, from cancer to infection to personalized medicine while learning about the people behind scientific research. The Beyond Biology podcast offers inspirational lessons of perseverance, empathy, and the power of a growth mindset. By exploring the individual story and their expertise, the podcast demonstrates how health and individual career journeys transform the way we approach scientific discovery. At MIT, Mary Ellen Wiltrout, PhD is a Senior Lecturer and Director of Online and Blended Learning Initiatives in Biology and Academic Director, DELTA Science and Academic Lead of Universal Biology in Open Learning.
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