Master Minds Mishka Narasimhan and Will Leidig

This week on Master Minds, we talked to Dr. Erik Herzog, Viktor Hamburger Distinguished Professor in Arts & Sciences and Professor of Biology at Washington University. Dr. Herzog is a chronobiologist - a scientist that studies how organisms create biological rhythms to help adapt to their environment. He is an expert on how the brain regulates circadian rhythms, which are physiological processes that follow a roughly 24-hour cycle. Circadian rhythms are relevant to nearly all other aspects of biology, including fluctuations in body temperature, hormone levels, and sleep as well as in the context of disease. Throughout the interview, Dr. Herzog explains the molecular mechanisms behind circadian rhythms and how a structure in the brain called the suprachiasmatic nucleus (SCN) serves as the master clock for all cells in the body. He also talks about the ways in which circadian rhythms can be used to optimize sleep and performance.

Professor Cowsik is considered by many to be the 'Father of Astroparticle Physics' for his invention of the leaky box model for the observation of cosmic rays and his discoveries characterizing neutrinos and dark matter as having a role in the Big Bang. The James S. McDonnell Professor of Space Sciences here at WashU, he has been compared to Enrico Fermi for his immensely productive career in theoretical and experimental physics. In this episode, we talk to Dr. Cowsik about the origin of the universe, dark matter, neutrinos, Grand Unified Theory, and more.

Today, we will be learning about genetics and evolution with Professor Barbara Schaal, evolutionary biologist and the Mary-Dell Chilton Distinguished Professor in Arts and Sciences at WashU. A pioneer in the field of plant evolution, she was one of the first to apply molecular genetic techniques to understanding evolutionary processes. Professor Schaal has served as president of the Botanical Society of America, the Society for the Study of Evolution, and the American Association for the Advancement of Science. She has also served as vice president of the US National Academy of Sciences and as a member of President Obama’s Council of Advisors for Science and Technology, as well as received the National Science Board Public Service Award in 2019 for her work in national science policy and education.

Today, we are taking a deep dive into the brain to learn about psychology of memories. We sat down with Dr. Henry Roediger, James S. McDonnell Distinguished University Professor of Psychological and Brain Sciences here at WashU and co author of the book, “Make It Stick: The Science of Successful Learning”. Dr. Roediger has been a pioneer in studying memory accessibility and retrieval, particularly false memories. Our conversation spanned topics from improving the Navy SEAL’s training to testing the reliability of eyewitness accounts in court.

In this episode of Master Minds, we sit down with Dr. Graham Colditz, epidemiologist and public health expert. Dr. Colditz is the Associate Director for Prevention and Control at Siteman Cancer Center and Chief of the Division of Public Health Sciences in the Department of Surgery at Washington University School of Medicine. He is also an adjunct professor of epidemiology at Harvard T.H. Chan School of Public Health. Dr. Colditz is an internationally recognized leader and researcher in cancer and chronic disease prevention and is currently the 4th highest cited researcher in the world with an h-index of 299. Throughout this episode, you will hear about Dr. Colditz’s background coming from Australia to the US, cancer epidemiology and prevention, and specific risk factors for cancer.

In this episode of Master Minds, we sit down with someone who is somewhat of a celebrity among the pre-med students at WashU. Dr. Greg Polites is the founder of MedPrep, a series of classes that students can take to learn more about the field of medicine. He is, by training, an emergency medicine physician and currently serves as the chair of the central subcommittee on the Admissions Committee for the Washington University School of Medicine. Over the course of this episode, you will see how Dr. Polites’ love of medicine and love of teaching coevolved and led to his extensive career in both clinical practice and guiding students on their own journey into medicine.