Uploaded October 2024 | Updated September 2026, 25 minutes ago
Dr. Rudy Tanzi is best known for co-discovering all three familial early onset Alzheimer’s genes — discoveries that have expanded what we know about the disease, how we might counter its effects, and the speed with which drug therapies can be brought to market.
He has co-written two books with Deepak Chopra, , “Super Brain” and “The Healing Self,” and is one of the top 50 most cited neuroscientists in the world. He also plays keyboards in the studio for Aerosmith and its guitar player Joe Perry.
A well-rounded career to be certain.
Tanzi is the director of the Genetics and Aging Research Unit as well as the director of the Henry and Allison McCance Center for Brain Health. He is also co-Director of the Massachusetts General Institute for Neurodegenerative Disease at Massachusetts General Hospital and serves as the Joseph P. and Rose F. Kennedy Professor of Neurology at Harvard Medical School.
He shares his expertise on this episode of STEM-Talk, available now wherever you listen to podcasts. It’s a fascinating conversation with someone who is a world-renowned expert in Alzheimer’s Disease.
“If you ask what leads to cognitive decline with age, or in a more serious way, what determines the degree of dementia once Alzheimer’s Disease begins, the answer is the same – the loss of synapses,” Tanzi says. “Inevitably as you age, synapses get lost. It’s our job to (build synaptic reserves, like reserves in a bank, because the more synapses you make, the more you can lose before you get into trouble. The way you build synapses is simple: You learn new things.”
Listeners will learn many things in this episode including:
How Tanzi’s childhood love of music — and a Jimmy Smith jazz album from his father — led from playing the accordion to playing the Hammond B3 organ. His father then asked if Tanzi would rather play the accordion or a Hammond B3 organ? “This is the same type of organ I was hearing in all the bands I was listening to like Yes and Sanatana and others. So, I said, yeah, I think I want to play the organ.”
How his family’s medical transcription business fed his early science interest and led him to entering the Westinghouse Science Talent Search as a teen.
How his project for the Westinghouse Science Talent Search on diabetic hypertensive retinopathy still influences his work today.
His work with Jim Gusella in the early 1980’s at Mass General where they were the first group to discover a specific disease gene linked to Huntington’s disease.
His discovery of the first Alzheimer’s gene, APP, which causes the production of amyloid and can cause a rare form of early onset Alzheimer’s.
The lifestyle factors that play into whether someone who is predisposed to develop Alzheimer’s can stave off or completely avoid disease development. “Neuroinflammation is the biggest killer of nerve lines and synapses in the brain,” Tanzi says. “As we age, inflammation becomes more and more rampant throughout the body….Your lifestyle, the amount of sleep you get, the quality of your diet and exercise, all of these things affect the rate of neuroinflammation in your brain.”
For Full shownotes, visit, ihmc.us/stemtalks
Dr. Rudy Tanzi is best known for co-discovering all three familial early onset Alzheimer’s genes — discoveries that have expanded what we know about the disease, how we might counter its effects, and the speed with which drug therapies can be brought to market.
He has co-written two books with Deepak Chopra, , “Super Brain” and “The Healing Self,” and is one of the top 50 most cited neuroscientists in the world. He also plays keyboards in the studio for Aerosmith and its guitar player Joe Perry.
A well-rounded career to be certain.
Tanzi is the director of the Genetics and Aging Research Unit as well as the director of the Henry and Allison McCance Center for Brain Health. He is also co-Director of the Massachusetts General Institute for Neurodegenerative Disease at Massachusetts General Hospital and serves as the Joseph P. and Rose F. Kennedy Professor of Neurology at Harvard Medical School.
He shares his expertise on this episode of STEM-Talk, available now wherever you listen to podcasts. It’s a fascinating conversation with someone who is a world-renowned expert in Alzheimer’s Disease.
“If you ask what leads to cognitive decline with age, or in a more serious way, what determines the degree of dementia once Alzheimer’s Disease begins, the answer is the same – the loss of synapses,” Tanzi says. “Inevitably as you age, synapses get lost. It’s our job to (build synaptic reserves, like reserves in a bank, because the more synapses you make, the more you can lose before you get into trouble. The way you build synapses is simple: You learn new things.”
Listeners will learn many things in this episode including:
How Tanzi’s childhood love of music — and a Jimmy Smith jazz album from his father — led from playing the accordion to playing the Hammond B3 organ. His father then asked if Tanzi would rather play the accordion or a Hammond B3 organ? “This is the same type of organ I was hearing in all the bands I was listening to like Yes and Sanatana and others. So, I said, yeah, I think I want to play the organ.”
How his family’s medical transcription business fed his early science interest and led him to entering the Westinghouse Science Talent Search as a teen.
How his project for the Westinghouse Science Talent Search on diabetic hypertensive retinopathy still influences his work today.
His work with Jim Gusella in the early 1980’s at Mass General where they were the first group to discover a specific disease gene linked to Huntington’s disease.
His discovery of the first Alzheimer’s gene, APP, which causes the production of amyloid and can cause a rare form of early onset Alzheimer’s.
The lifestyle factors that play into whether someone who is predisposed to develop Alzheimer’s can stave off or completely avoid disease development. “Neuroinflammation is the biggest killer of nerve lines and synapses in the brain,” Tanzi says. “As we age, inflammation becomes more and more rampant throughout the body….Your lifestyle, the amount of sleep you get, the quality of your diet and exercise, all of these things affect the rate of neuroinflammation in your brain.”
For Full shownotes, visit, ihmc.us/stemtalks
![Episode 193: Tommy Wood and his new book bust the belief that the adult brain is fixed
Today we have Dr. Tommy Wood, a neuroscientist and frequent STEM-Talk guest who joins today on the eve of the publication of his first book, “The Stimulated Mind: Future-Proof Your Brain from Dementia and Stay Sharp at Any Age.” (https://www.amazon.com/Stimulated-Mind-Future-Proof-Brain-Dementia-ebook/dp/B0FFGBQC7D/ref=tmm_kin_swatch_0?_encoding=UTF8&dib_tag=se&dib=eyJ2IjoiMSJ9.cjFMDZOijlhN4WmOnqYGhZwa3eCd_OypkejnAiJavA4.QaOaqMzvyJoa-o4fgmxvsWn8XraPovMRJQmPp4s_Jo0&qid=1773859590&sr=8-1)
Tommy is an Associate Professor of Pediatrics and Neuroscience at the University of Washington, where his laboratory focuses on brain health across human lifespan. Tommy is a colleague and good friend who also is a Visiting Research Scientist here at IHMC.
Today we talk to Tommy about his mission to dispel the myth that the brain is doomed to decline with age. His book, which publishes on March 24 but is available for pre-order on Amazon, offers science-backed strategies to enhance mental sharpness and prevent cognitive decline, including Alzheimer’s disease.
There was so much to unpack with Tommy about his book, that we decided to split his interview into two parts. Today we talk to Tommy about the history of neuroscience and how researchers go about studying the brain. We also have a conversation with Tommy about what is holding us back in terms of addressing an ever-increasing burden of cognitive and mental health disorders we are experiencing not only here in the U.S., but also around the world. In part two of Tommy’ interview, which will air in a few weeks following today’s episode, Tommy shares science-backed strategies to help people future-proof their brains.
Tommy’s lab at the University of Washington focuses on brain health across the lifespan. He conducts research that focuses on ways to treat a range of brain injuries, including babies born preterm and adults who experience brain trauma. He also investigates lifestyle factors that affect long-term cognitive function and increase the risk of dementia.
Tommy has a bachelor’s degree in biochemistry from the University of Cambridge, a medical degree from the University of Oxford, and a Ph.D. in Physiology and Neuroscience from the University of Oslo.
Show notes:
[00:04:04] Dawn opens our interview congratulating Tommy on his new book, “The Stimulated Mind.” Dawn asks Tommy what inspired him to write his first book.
[00:07:29] Since writing the book consumed more than 18 months of Tommy’s life, Dawn asks Tommy if he thinks he’ll write another one.
[00:09:36] Dawn asks if it’s fair to say that the overarching theme of “The Stimulated Mind” is that the conventional belief the adult brain is fixed and incapable of change is wrong.
[00:17:35] Ken explains that Tommy opens his book with a story about a study on barn owls, where researchers outfitted a group of owls with prism goggles that altered the perceived position of objects in the owls’ vision. While young owls were able to quickly adapt to the change in their vision and return to normal behavior and activities, adult owls, even after months of wearing the goggles, were unable to adapt and would miss mice that were directly under their beaks. However, the research group amended their study design and found something interesting. Ken asks Tommy to explain what they found when they amended their design.
[00:22:40] Ken asks Tommy to share how a human study, which outfitted participants with goggles that flipped their vision upside down, demonstrated the adaptability of the adult brain.
[00:25:32] Ken asks if these sorts of adaptations have been seen as beyond basic sensory modalities in higher cognitive functions.
[00:31:25] Dawn zooms out in our discussion and asks Tommy, given the falsehood of our previous understanding of the adult brain as being fixed, what exactly do we know about the brain.
[00:35:36] Dawn asks Tommy to talk about Santiago Ramón y Cajal, who is considered the first neuroscientist.
[00:38:41] Dawn mentions chapter two of Tommy’s book, “How do Neuroscientists Study the Brain,” in which Tommy explains the complexity of the brain, which is comprised of almost 100 billion neurons which compose nearly a quadrillion synapses. Given the complexity of the brain, Tommy notes in his book that even an organ as complex as the human brain is incapable of fully comprehending its own complexity. Dawn asks Tommy to talk about how he and his colleagues approach studying the brain.
[00:43:30] Ken notes the parallels between attempting to understand the function of the brain based on an understanding of its individual components to the process of trying to understand how a piece of software works on a computer by systematically studying the computer’s hardware. Ken goes on to start a discussion on the parallels between the brain as a self-referential system that is so complex it cannot even fully understand itself, to various paradoxes as well as Gödel’s theorem, wh... Episode 193: Tommy Wood and his new book bust the belief that the adult brain is fixed](https://i.ytimg.com/vi/EIKaeOgKYsM/mqdefault.jpg)









