Research Renaissance: Exploring the Future of Brain Science

Addiction treatment has historically relied on self-reporting and intermittent check-ins. Rachel Hobert, CEO of Huml Health, joins the show to discuss how her company is using wearable technology and voice biomarkers to provide clinicians with a clearer, continuous picture of a patient's health. We discuss the role of data in predicting struggles, the importance of the mind-body connection, and the challenges of innovating within a slow-to-adopt healthcare industry.

Key Takeaways

• The Shift to Passive Monitoring: Addiction treatment is moving from relying solely on patient self-reports to using objective biometric data like heart rate variability and sleep patterns to understand how a patient is truly doing.
• A Tool for Clinicians: Huml Health acts as a clinical decision support tool rather than a diagnostic device, surfacing engagement signals that help doctors ask the right questions at the right time.
• Connection is Key: The opposite of addiction is connection. Technology can facilitate that connection by keeping families and clinicians informed and engaged throughout the recovery journey.
• Overcoming Industry Hurdles: Healthcare innovation faces significant barriers, including slow adoption and misaligned incentives. Success requires a clear purpose and persistence.

Resources Mentioned
Huml Health
Canary Speech
Dr. Scott Lucas (Harvard McLean Medical School)

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To learn more about the breakthroughs discussed in this episode and to support ongoing research, visit our website at tofflertrust.org.

Technical Podcast Support by Jon Keur at Wayfare Recording Co.

How are deep ocean dynamics, extreme weather, and human health intertwined? In this episode of Research Renaissance, host Deborah Westphal sits down with Dr. Joellen Russell-a leading oceanographer and professor at the University of Arizona-to explore how the world’s oceans act as the ultimate life-support system for our planet.

From her childhood north of the Arctic Circle to surviving 50-foot waves in the Southern Ocean, Dr. Russell shares her journey of uncovering how deep sea upwelling impacts global temperatures, local heat waves, and the biological limits of human resilience. Discover how grassroots action, autonomous float technology, and cross-disciplinary research between neuroscientists and climate scientists are shaping the future of global adaptation.

Key Takeaways

• The Southern Ocean Bellows: The Antarctic Circumpolar Current is the largest on Earth, pulling ancient, nutrient-rich deep water to the surface and regulating global heat absorption.
• Human & Neurological Resilience: Rising heat waves directly impact cognitive health, vulnerable populations (elders and infants), and daily community routines.
• Technological Evolution: Autonomous Argo floats with biogeochemical sensors have transformed weather, ocean, and fish forecasting globally.
• Grassroots Solutions: Communities, farmers, and everyday people are driving energy transitions locally to lower costs and increase resilience regardless of national policy debates.
• The Talent Gap: With only ~6,000 PhD-level research oceanographers worldwide, there is an urgent need for more researchers across every discipline.

Guest Info & Mentioned Resources

Guest: Dr. Joellen Russell, Professor of Geosciences and Planetary Sciences at the University of Arizona.
Guest Contact: Reach Dr. Russell directly via the University of Arizona Faculty Page.

Resources Mentioned:

Karen Toffler Charitable Trust
Science Moms
Argo Global Ocean Observing Array

If you enjoyed this episode, please subscribe to Research Renaissance on Apple Podcasts, Spotify, or your favorite platform, and share this episode with a friend or colleague to help spread the word about groundbreaking science!

To learn more about the breakthroughs discussed in this episode and to support ongoing research, visit our website at tofflertrust.org.

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In this episode of Research Renaissance, host Deborah Westphall sits down with Dr. Wolfgang Stein, a professor at Illinois State University School of Biological Sciences. Dr. Stein shares his fascinating journey into neurobiology, how studying simple neural circuits in animals helps us understand complex brain function, and why flexibility is actually the foundation of biological robustness.

Key Takeaways

• Discover how a chance encounter with neurophysiology during an undergraduate course changed Dr. Stein's career path.
• Learn why studying small neural circuits provides crucial insights into how nervous systems generate and control behavior.
• Explore the connection between environmental changes, temperature extremes, and neural adaptability.
• Understand the balance between flexibility and robustness in biological systems and what it means for health science.

Main Discussion Points

• From Genetics to Neurobiology: Dr. Stein discusses his early pivot from genetics to recording neurons in leeches and the inspiring research environment at the University of Pennsylvania.
• The Roadmap Analogy: Why brain connectivity maps are necessary but not sufficient to understand neural output without knowing the underlying neuromodulation and activity.
• Environmental Stress and Temperature: How sudden temperature shifts and heatwaves impact nervous systems across species and why researchers are studying these effects.
• Embracing Failure in Science: Why curiosity and resilience in the face of unexpected results are essential traits for every researcher.

Resources and Mentions
Karen Toffler Charitable Trust
Illinois State University School of Biological Sciences
University of Pennsylvania
Kavli Foundation

If you enjoyed this episode, please subscribe, leave a review, and share it with friends and colleagues who are curious about the future of health science!

To learn more about the breakthroughs discussed in this episode and to support ongoing research, visit our website at tofflertrust.org.

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What if the blood vessels in your brain aren't just collateral damage in Alzheimer's disease, but part of the cause?

Dr. Rachel Bennett, associate professor at Massachusetts General Hospital and Harvard Medical School, is challenging one of the field's longest-held assumptions. In this episode, she joins host Deborah Westfall to break down her groundbreaking research on the relationship between tau pathology and vascular dysfunction, and why the future of Alzheimer's science may look nothing like what we expect today.

What You'll Learn in This Episode

• Why vascular changes in Alzheimer's disease were historically treated as secondary damage, and why that thinking is shifting
• How Dr. Bennett's lab discovered that tau pathology alone can drive abnormal changes in blood vessel structure
• The thick-tissue imaging technique that revealed something thin slides had been missing for decades
• What 47 meters of blood vessels in a single brain fold tells us about the scale of this problem
• Why the field may be drastically underestimating the number of distinct Alzheimer's disease subtypes
• How AI and spatial transcriptomics are accelerating discoveries that would have taken years under traditional funding timelines
• The critical role of philanthropic funding for early-career researchers, and why smaller, faster grants can outperform traditional NIH timelines

About Dr. Rachel Bennett

Dr. Rachel Bennett is an associate professor at Massachusetts General Hospital and Harvard Medical School, and a 2024 and 2025 Toffler Scholar. She runs the Bennett Alz Lab, which focuses on vascular contributions to Alzheimer's disease using cutting-edge imaging techniques including light sheet microscopy, in vivo two-photon microscopy, and spatial transcriptomics. She completed her PhD at Washington University in St. Louis studying traumatic brain injury and microglia, and her postdoctoral training in the lab of Dr. Bradley Hyman at MGH.

Resources and Links

• Bennett Alz Lab: bennettallzlab.com
• Connect with Dr. Bennett on LinkedIn
• Karen Toffler Charitable Trust: karrentoffler.org
• Massachusetts Alzheimer's Disease Research Center (Massachusetts ADRC)
• Research referenced: Acta Neuropathologica (tau and vascular accumulation study)

If this episode opened your eyes to a new side of Alzheimer's research, please leave a review on Apple Podcasts or Spotify. Share it with someone who cares about brain health, and subscribe so you never miss an episode of Research Renaissance.

To learn more about the breakthroughs discussed in this episode and to support ongoing research, visit our website at tofflertrust.org.

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What if the roots of anxiety, depression, and early puberty trace back to the first years of life — and we've been asking the wrong questions?

In this episode, host Deborah Westphal sits down with Angarika Balakrishnan, PhD candidate at the Brenhouse Lab at Northeastern University, whose research links early-life adversity to long-term brain development, neuroendocrine disruption, and mental health outcomes.

Key Takeaways

• Early-life adversity is not a single variable — timing, type, and predictability each produce different biological signatures in the developing brain
• The CRHR1 receptor in the hypothalamus may be a targetable mechanism for preventing early-onset puberty and adolescent anxiety
• Exercise during adolescence could serve as a treatment paradigm for metabolic, immune, and cognitive outcomes linked to early stress
• Depression, anxiety, and PTSD share underlying circuitry — treating them as separate conditions has slowed progress
• Science rewards certainty over doubt, and that culture is driving a mental health crisis inside PhD programs

About Angarika
PhD candidate, Brenhouse Lab, Northeastern University. Recently published in Hormones and Behavior and Neurobiology of Stress. Research supported by the Karen Toffler Charitable Trust.

Enjoyed this episode? Subscribe, leave a review, and share with anyone passionate about brain science or mental health.

To learn more about the breakthroughs discussed in this episode and to support ongoing research, visit our website at tofflertrust.org.

Technical Podcast Support by Jon Keur at Wayfare Recording Co.

What if diagnosing PTSD, anxiety, and depression could be as objective as a blood test — done in 10 minutes on your phone?

That's the vision behind Sensei, a company using AI and ocular biometrics to bring measurable, objective diagnostics to mental health. In this episode, host Deborah Westphal sits down with David Zakariaie, founder and CEO of Sensei, to talk about the science of the eye, a $2M technology problem solved with a commercial camera, and why fixing mental health starts with fixing measurement.

Key Takeaways

• Mental health's biggest crisis isn't just a shortage of care — it's a measurement problem. Major depression, the most commonly diagnosed mental health condition in the U.S., is misdiagnosed approximately 65% of the time. PTSD, bipolar, and schizophrenia are misdiagnosed between 84–92% of the time.
• Sensei's diagnostic app shows patients a series of ocular stimuli for roughly 10.5 minutes, captures their eyes' responses via a standard smartphone camera, and outputs a binary diagnosis plus a severity score.
• The platform measures approximately 45 individual metrics across three categories: traditional ocular metrics (pupil size, blinks, saccades, gaze), iris dilator and sphincter dynamics (mapping sympathetic vs. parasympathetic nervous system activity), and heart rate and heart rate variability from facial video.
• Sensei is currently in Phase 3 clinical trials for a PTSD diagnostic, with an FDA submission planned for late 2025 and approval expected in 2027.
• About 16,000 people participated in pre-trial studies; the full dataset at submission is expected to reach approximately 30,000.
• The go-to-market strategy focuses on telehealth platform integration — partnering with companies like Spring Health, Talkspace, and BetterHelp to embed the diagnostic tool directly into existing care delivery workflows.
• Future expansion targets schizophrenia, bipolar disorder, and ADHD, with longer-term interest in neurodegenerative conditions like Alzheimer's and dementia.

About David Zacharia

David Zakariaie is the founder and CEO of Sensei, a mental health diagnostics company building the first FDA-regulatory-grade platform for diagnosing and monitoring PTSD, anxiety, and depression using AI-powered ocular biometrics. His path began at 15, when he attended Google I/O, received an early pair of Google Glass, and became fascinated with the scientific potential of the human eye. He left high school after 10th grade, taught himself to code, and launched the company in 2015.

Resources & Links Mentioned

• Sensei: sensei.health (verify current URL)
• Mental Health Study (Phase 3 Trial Sign-Up): mentalhealthstudy.org
• Karen Toffler Charitable Trust: tofflertrust.org (verify current URL)
• Parea Therapeutics (digital therapeutics reference)
• The CAPS-5 (Clinician-Administered PTSD Scale)
• The PCL-5 (PTSD Checklist for DSM-5)

If You Enjoyed This Episode

Subscribe to Research Renaissance wherever you listen to podcasts. If this conversation sparked something for you, share it with someone in healthcare, mental health advocacy, or neuroscience — this is the kind of work that needs more eyeballs on it.

To learn more about the breakthroughs discussed in this episode and to support ongoing research, visit our website at tofflertrust.org.

Technical Podcast Support by Jon Keur at Wayfare Recording Co.

Are you trading your long-term brain health for late-night screen time? Dr. Paul Chung, physician and researcher at Northwestern University, joins host Deborah Westphal to reveal why sleep is far more than rest - and why ignoring it could cost you decades of cognitive health.

Dr. Chung is an Assistant Professor at Northwestern University, a pulmonary and sleep medicine physician, and a 2023 Toffler Scholar. His research sits at the intersection of sleep, circadian biology, and Alzheimer's disease - with a special focus on adults with Down syndrome as a model for understanding cognitive decline.

What You'll Learn in This Episode

• Why sleep is an active process of repair - not passive rest - and how it regulates your heart, brain, immune system, and metabolism
• What sleep apnea actually is (beyond snoring) and why it causes a body-wide stress response every single night
• Why sleep apnea remains dramatically underdiagnosed - even 60 years after being formally defined - and what patients say when asked why they skip sleep studies
• The shocking truth: a third of adults and children still aren't getting enough sleep, and the number is even worse for teenagers
• How disrupted circadian rhythms are linked to the buildup of amyloid beta - the protein central to Alzheimer's disease
• Why individuals with Down syndrome are an invaluable research population for understanding Alzheimer's progression in the broader population
• What "slow wave activity" in sleep EEG data reveals about cognitive decline
• The science of chronotherapy - why when you take a medication or vaccine may be just as important as what you take
• Night owls vs. early birds: the genetic reality behind your body clock, and why society quietly punishes night owls
• The future of personalized sleep medicine - beyond CPAP

Key Takeaway
Sleep is the third pillar of health alongside diet and exercise - yet it's the one most people sacrifice first

About Dr. Paul Chung
Dr. Paul Chung is a physician and Assistant Professor at Northwestern University's Feinberg School of Medicine, specializing in pulmonary and sleep medicine. He is a 2023 Toffler Scholar whose research focuses on sleep EEG microstructure, actigraphy, and circadian rhythms as they relate to cognitive vulnerability and Alzheimer's disease - with a particular emphasis on adults with Down syndrome.

Research inquiries: [email protected] (For clinical appointments, contact Northwestern Medicine directly.)

Resources Mentioned
Karen Toffler Charitable Trust - Funding innovative, early-stage health research: tofflertrust.org
NIH INCLUDE Project - Initiative to increase Down syndrome research funding: www.nih.gov
Alzheimer's Biomarkers Consortium for Down Syndrome (ABC-DS) - Large collaborative cohort study
Northwestern University Feinberg School of Medicine - Sleep Medicine Program

If this conversation opened your eyes to the power of sleep science, please subscribe, leave a review, and share it with someone who keeps saying they'll "sleep when they're dead." Your support helps us bring more groundbreaking researchers to this mic.

To learn more about the breakthroughs discussed in this episode and to support ongoing research, visit our website at tofflertrust.org.

Technical Podcast Support by Jon Keur at Wayfare Recording Co.

What if the key to understanding autism isn't one gene — but thousands working together?

In this episode of Research Renaissance, host Deborah Westphal sits down with Dr. Daniel Gershwind, Gordon and Virginia McDonald Distinguished Professor of Human Genetics, Neurology, and Psychiatry at UCLA, and Associate Vice Chancellor for Precision Health. A true pioneer in neurogenomics, Dr. Gershwind has spent over two decades reshaping how we understand autism and complex brain disorders — from building one of the first autism gene banks to applying transcriptomic network methods that revealed the molecular landscape of the brain in entirely new ways.

This conversation is as much about the science as it is about how science gets done — through collaboration, curiosity, and a willingness to tackle the problems others walk away from.

Key Takeaways

• Genetics doesn't mean "everything is genetic" — all human disease has both genetic and environmental components, but genetics offers a powerful, tractable starting point for understanding cause
• Looking at gene networks (rather than single genes) transformed the field by making sense of hundreds or thousands of genes at once — and revealing how biological systems adapt and respond to disruption
• Autism affects approximately 1 in 100 children today — not because rates have risen, but because our ability to diagnose it has dramatically improved over the past 30 years
• About 15% of people with autism can now be identified with a specific causative genetic mutation through whole genome or exome sequencing — pointing toward targeted, precision therapies
• Transcriptomics (measuring RNA expression across the brain) revealed shared molecular patterns in autism brains across different patients — a surprising convergence that has since been validated in large sample sizes
• Autism, schizophrenia, and bipolar disorder share some molecular pathology but are mostly molecularly distinct — a finding only visible at the transcriptomic level
• CRISPR activation (without genome editing) has already been used in lab models to restore normal neuronal firing in certain autism-linked epilepsy syndromes — a proof of concept for future therapies
• AI is now being used to connect gene networks to existing drugs, potentially accelerating drug discovery without needing full mechanistic understanding
• Neurodegeneration (including Alzheimer's and frontotemporal dementia) is closer to clinical trials than autism — but the two fields are informing each other in real time

About the Guest

Dr. Daniel Gershwind is the Gordon and Virginia McDonald Distinguished Professor of Human Genetics, Neurology, and Psychiatry at UCLA. He leads the Gershwind Lab and serves as Associate Vice Chancellor for Precision Health. He co-founded the Autism Genetic Resource Exchange (AGRE), which became the leading data resource for autism genetics research for over a decade, and has been instrumental in developing transcriptomic network approaches now used widely across the field.

Resources & Links

• Karen Toffler Charitable Trust: karentoffler.org
• Autism Genetic Resource Exchange (AGRE)
• UCLA Gershwind Lab
• PsychENCODE Consortium

Enjoyed this episode? Subscribe to Research Renaissance wherever you listen to podcasts, leave us a review on Apple Podcasts, and share this episode with anyone who cares about the future of brain health research. Every share helps bring this science to more people.

To learn more about the breakthroughs discussed in this episode and to support ongoing research, visit our website at tofflertrust.org.

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What if one of the most promising frontiers in Alzheimer's research isn't just about what's building up in the brain - but how the brain clears it out? In this episode of Research Renaissance, host Deborah Westphal sits down with Dr. Tirth Patel, a neurologist and physician-scientist at UCLA and 2025 Toffler Scholar, to explore the cutting-edge science of brain clearance, tau protein, and the newly discovered lymphatic vessels surrounding the brain.

This is a conversation about curiosity, persistence, and the kind of early-career science that could reshape how we understand and treat dementia.

What You'll Learn in This Episode

• What tau protein is, why it "gunks up" the brain, and how it differs from amyloid beta in Alzheimer's disease
• The recently discovered lymphatic vessels in the brain's meninges - and why they matter for clearing toxic proteins
• How sleep deprivation spikes tau and amyloid levels in the blood, and what that means for long-term brain health
• The glymphatic system: the brain's internal waste-clearance highway and its deep connection to sleep
• Why aging slows down the brain's lymphatic drainage - and what researchers are doing about it
• The genetics of Alzheimer's: the difference between causative mutations (APP, PS1, PS2) and risk factors like APOE4
• New FDA-approved blood tests and the promise of tau PET scans for better diagnosis and staging
• The latest treatments for Alzheimer's - how they work, their limitations, and what's coming next
• Why failure is one of the most undervalued tools in science - and what's missing in how the field handles negative data
• A candid take on AI in biological research: where it helps, where it falls short, and whether it lets scientists fail

About Our Guest

Dr. Tirth Patel is a neurologist and physician-scientist at UCLA, currently working in the lab of Dr. Jason Hinman. His research focuses on how the brain's meningeal lymphatic vessels clear tau protein from the brain to the bloodstream - a question with major implications for Alzheimer's disease and related dementias. Dr. Patel is a 2025 Toffler Scholar, supported by the Karen Toffler Charitable Trust. He is also the co-host of the podcast Recreational Science, where he and his colleague Dr. Lou Yang explore wacky but well-designed scientific studies to illuminate the scientific method.

📧 Reach Dr. Patel: [email protected]

Resources & Links Mentioned

• Karen Toffler Charitable Trust
• Recreational Science Podcast - co-hosted by Dr. Tirth Patel and Dr. Lou Yang
• UCLA Department of Neurology
• Alzheimer's Association resources on APOE4, tau, and amyloid

Like what you heard? Subscribe to Research Renaissance on Apple Podcasts, Spotify, or wherever you listen. Leave us a review - it helps more people discover the science that matters. And share this episode with someone who cares about brain health, aging, or the future of medicine.

Research Renaissance is presented by the Karen Toffler Charitable Trust.

To learn more about the breakthroughs discussed in this episode and to support ongoing research, visit our website at tofflertrust.org.

Technical Podcast Support by Jon Keur at Wayfare Recording Co.

The Hidden Genome Inside Every Cell

Most of us learned that mitochondria are the “powerhouse of the cell.”
What we didn’t learn?

They carry their own DNA — and that DNA may hold crucial answers to aging, neurodegeneration, and rare childhood diseases.

In this episode of Research Renaissance, host Deborah Westphal speaks with Dr. Stefan Isaac, Assistant Professor at Boston University and 2025 Toffler Scholar, about how mitochondrial DNA is organized, regulated, and why its dysfunction may contribute to diseases ranging from Leigh syndrome to Alzheimer’s.

🎯 Key Takeaways

• Every cell contains hundreds to thousands of copies of mitochondrial DNA
• Mitochondrial mutations accumulate over time and may drive aging and disease
• There is a biochemical threshold — disease often appears when 60–80% of mitochondrial genomes are mutated
• New long-read sequencing technologies allow researchers to study mitochondrial DNA at single-molecule resolution
• Emerging therapies aim to tip the balance toward healthy mitochondrial genomes
• Mitochondrial dysfunction plays a role in:
• Rare primary mitochondrial diseases
• Neurodegenerative diseases (Alzheimer’s, Parkinson’s)
• Neuromuscular and metabolic disorders

🧪 Featured Topics

• Mitochondrial gene expression
• DNA accessibility and genome packaging
• Induced pluripotent stem cells (iPSCs)
• Cortical neuron models
• Mutation drift vs. selective replication
• Environmental exposure and mitochondrial health
• Antibiotic-associated mitochondrial toxicity

🔬 About Our Guest
Dr. Stefan Isaac
Assistant Professor, Boston University
Research focus: Mitochondrial genome regulation, replication, and dysfunction in aging and disease.

If you found this conversation insightful:

• Follow Research Renaissance
• Share this episode with a colleague
• Leave a review on Apple Podcasts or Spotify
• Send it to someone interested in neuroscience, aging, or rare diseases

The future of medicine begins with understanding the cell.

To learn more about the breakthroughs discussed in this episode and to support ongoing research, visit our website at tofflertrust.org.

Technical Podcast Support by Jon Keur at Wayfare Recording Co.