Immunology expert Allan Kirk, MD, PhD, discusses what compels the immune system to respond to danger, and how our immune systems change over time. Dr. Kirk is a transplant surgeon and the chair of the Department of Surgery. He is also professor in the Departments of Immunology and Pediatrics at Duke. Transcript: LK Welcome to HeadScratchers, a mini-cast from the Duke University School of Medicine. We ask Duke experts to help us understand the questions in science that have us scratching...

Cancer expert Kelly Marcom, MD, discusses the role that genetics and environmental exposure play in the role of understanding why a person develops cancer. Dr. Marcom is a professor of medicine and member of the Duke Cancer Institute (DCI). He is part of a team of experts at DCI that offers genetic testing and counseling to people diagnosed with cancer, as well as people at risk of developing cancer. Transcript Lindsay Key: Welcome to HeadScratchers, a mini-cast from the Duke University...

Addiction expert Nicole Schramm-Sapyta, PhD, discusses signs of addiction, who is most vulnerable, and the best antidote. Dr. Schramm-Sapyta is an associate professor of the practice in the Duke Institute for Brain Sciences and the Department of Psychiatry and Behavioral Science. Transcript: Lindsay Key: Welcome to HeadScratchers, a mini-cast from the Duke University School of Medicine. We ask Duke experts to help us understand the questions in science that have us scratching our heads....

Infectious disease expert Greg Gray, MD, PhD, FIDSA, discusses why COVID-19 spread so quickly, why it’s so deadly compared to other viruses, and what we should be doing to prevent another pandemic. Dr. Gray Is an infectious disease epidemiologist, professor of medicine in the Division of Infectious Diseases, and member of the Duke Global Health Institute. Transcript: Lindsay Key: Welcome to HeadScratchers, a minicast from the Duke University School of Medicine. We ask Duke experts to help...

Dr. Jeffrey Crawford, MD, George Barth Geller Distinguished Professor and Professor of Medicine, explains the relationship between smoking and lung cancer. Transcript: Host: Lindsay Key Welcome to Headscratchers, a mini-cast from the Duke University School of Medicine. We ask Duke experts to help us understand the questions in science that have us scratching our heads. Today we're speaking with Dr. Jeffrey Crawford, an expert in lung cancer. Dr. Crawford, my aunt lived her entire life without...

Ken Poss, PhD, James B. Duke Distinguished Professor of Cell Biology and Director of the Regeneration Next Initiative, explains how salamanders can regenerate limbs and discusses what implications that has for the future of human limb regeneration. Transcript Lindsay Key Welcome to Headscratchers, a mini-cast from the Duke University School of Medicine. We ask Duke experts to help us understand the questions in science that have us scratching our heads. Today we're speaking with Dr. Ken...

Transcript: Music: HipJazz by Bensound Lindsay Key Welcome to Headscratchers, a mini-cast from the Duke University School of Medicine. We ask Duke experts to help us understand the questions in science that have us scratching our heads. Today we’re speaking with Dr. Jade Wu, a clinical psychologist and sleep expert. Dr. Wu, I’ve been sleeping well my whole life. Then, five years ago I developed insomnia. What’s keeping me up at night? And how can I get out of this rut? Dr. Wu I would say...

Rich O’Brien, MD, PhD, the Disque D. Deane University Professor of Neurology and chair of the Department of Neurology, is an expert in memory disorders. He discusses why a person might be able to recall a retirement party they attended thirty years ago, but not what they had for lunch that day.

Sana Mustapha Al-Khatib, MD, is an expert in sudden cardiac death. She discusses how – and why—an otherwise healthy young person can die suddenly of sudden cardiac death and the difference between the terms “sudden cardiac death” and “heart attack.” Dr. Al-Khatib is a professor of medicine in the Duke University School of Medicine. Transcript Lindsay Key Welcome to Headscratchers, a mini-cast from the Duke University School of Medicine. We ask Duke experts to help us understand the...

Vaccine development expert Dr. Tony Moody explains why creating a universal flu vaccine—which protects against all strains of the virus—is so difficult, and how researchers at Duke are addressing this challenge. Dr. Moody is an associate professor in the Department of Pediatrics, Division of Infectious Diseases, and the Department of Immunology at Duke University School of Medicine. He is director of the Laboratory of B cell Immunotechnology at the Duke Human Vaccine Institute. Transcript:...