Science Vs

Mary Roach, best-selling science writer known for probing quirky, taboo human biology, joins to explore sex research history and oddball methods. Short, lively segments cover the female orgasm and the 'upsuck' idea, bizarre lab tools and pioneers' techniques, pig insemination practices in Denmark, and jaw-dropping ultrasound discoveries like a masturbating fetus.

Becca Lynch, a young patient who faced early-onset colorectal cancer, shares her first-person diagnosis and treatment story. The conversation covers rising rates of colorectal cancer in people under 50. Listeners learn which stool and symptom changes to watch for. Scientists discuss microbial and environmental leads, including a bacterial DNA fingerprint linked to early cases.

Barry Komisorak, a neuroscience researcher who studies nipple and genital brain responses, and Alia Macrina Heise, a lactation specialist who named D-MER, explain a strange sinking, homesick feeling tied to nipple stimulation. They dive into neural imaging, milk letdown mechanics, hormones like oxytocin and dopamine, and practical ways people cope with this baffling sensory-emotional reaction.

Joel Werner, a science journalist and commentator, helps unravel a shocking 1988 medical case. He walks through how pregnancy was possible without a vaginal opening. The discussion covers vaginal agenesis, surprising routes sperm might take, and the medical detective work that followed.

Claudia Dressel, a dementia care psychologist and professor, offers ACT-based guidance. Brian Reed, journalist and podcaster, shares the strain of living with a mother-in-law who has Alzheimer’s. They talk about daily repetition, grief over lost abilities, caregiver burnout, mapping family roles, and practical ACT tools to manage anger and choose sustainable care.

Matt Brown, a former barber turned community advocate who works with men to prevent domestic violence, and Ben Karney, a UCLA psychology professor who studies couples, discuss relationship dynamics. They explore what healthy fighting looks like. They unpack early warning patterns of control and how change may or may not happen. The conversation focuses on safety, responsibility, and practical approaches to shifting harmful behavior.

William Lopez, clinical associate professor researching mental-health and physical impacts of immigration enforcement. Carlee Toddes, neuroscientist who studies how pain receptors react to chemicals. Jennifer Brown, neuroscientist and legal scholar investigating tear gas health effects. They discuss how tear gas affects the body, what we know about long-term harms, ways to reduce exposure, and how immigration raids shape community health and safety.

Bob Waldinger, a psychiatrist and director of the Harvard Study of Adult Development, dives into the science of happiness. He reveals that strong, warm relationships are the key to long-term happiness and better health. Money and kids don't guarantee joy, and avoiding stress is crucial for emotional well-being. Bob shares personal stories about enhancing friendships and the impact of childhood adversity. His big takeaway? Invest in people and meaningful connections, as they're what truly enrich our lives.

Professor Jens Lundgren, an infectious disease expert from the University of Copenhagen, shares insights on Denmark's vaccine strategies, emphasizing how they consider disease prevalence and health system capacity. He discusses the U.S.'s recent drastic reduction in recommended childhood vaccines and contrasts it with Denmark’s targeted approach. Lundgren and pediatrician David Higgins address the complexities of simply mirroring another country's schedule, predicting potential confusion and decreased access in the U.S. They highlight the importance of adapting to local contexts for effective vaccination policies.

Dr. Aaron French, an assistant professor of information systems at Kennesaw State University, dives into the transformative effects of AI on productivity. He discusses the dual nature of AI tools—how they can enhance our efficiency while raising concerns about over-reliance and potential de-skilling. They touch on AI's role in education, comparing its benefits for tutoring against the risks of shallow learning. French emphasizes the balance we must strike to harness AI effectively without compromising deep cognitive engagement.