Science Weekly

Karen McVeigh, a Senior reporter for Guardian Seascapes, brings her expertise on ocean health to the discussion of the plastic crisis. She delves into the disastrous nurdle spill off Kerala’s coast and its lasting impact on marine life and local fishing communities. The conversation highlights the alarming presence of microplastics in the human brain and the ongoing global struggle to reach a plastics treaty, hindered by resistance from oil-dependent nations. Despite setbacks, McVeigh emphasizes the need for collaboration and action to tackle plastic pollution.

Ajit Niranjan, The Guardian's Europe Environment Correspondent, dives into Europe's alarming heatwave, where temperatures soar past 44°C and wildfires rage. He discusses the unique challenges Europeans face during this crisis, from sleepless nights to health risks. Strategies to stay cool, such as optimal hydration and clever cooling techniques, are shared, along with intriguing insights into how gender affects temperature perception. The conversation stresses the urgent need for climate action to combat these record-breaking conditions.

The podcast dives into the growing controversy surrounding sunscreen and its safety. Experts discuss the science behind UV protection and the various filters used in sunscreens. Concerns are raised about certain ingredients entering the bloodstream and their effects on marine life. The episode balances sun safety with the benefits of sun exposure, particularly regarding vitamin D. Additional insights on related historical topics and upcoming events round out the discussion, offering listeners a well-rounded perspective.

In this engaging discussion, Nick Turk-Browne, a Yale psychology and neuroscience professor, dives into the fascinating puzzle of early childhood memories, particularly infantile amnesia. He explores why we often can't recall our earliest experiences and highlights the crucial role of the hippocampus in memory formation. Turk-Browne also offers insights on how the developing brain influences memory storage and retrieval, suggesting that early memories may significantly shape our identities and future experiences.

Scientists are raising alarms about the pursuit of 'mirror life' microbes, expressing concerns over unprecedented risks to Earth's ecosystems. Initial excitement around these synthetic organisms has given way to caution, especially regarding their potential ecological consequences and implications for drug development. Discussions touch on the concept of chirality in biology, the fine balance between innovation and safety, and even the possibility of similar life forms existing elsewhere in the universe. It's a captivating mix of promise and peril in cutting-edge science.

Keon West, a Professor of Social Psychology at the University of London and author of 'The Science of Racism', shares his insights on the systemic nature of racism. He discusses the surprising biases in educational settings and the impact of racism in competitive dance shows like 'Strictly Come Dancing.' West explains the difference between conscious and unconscious bias, emphasizing the limitations of current training programs. He also highlights effective strategies, such as fostering intergroup contact, needed to combat racism and promote diversity.

Gloria Mark, a Professor of Informatics at UC Irvine and author of 'Attention Span', explores the modern crisis of dwindling attention spans. She reveals that our ability to focus has plummeted from two and a half minutes to just 47 seconds. Mark highlights how technology cultivates distractions and suggests actionable strategies to reclaim focus. She discusses the importance of taking breaks for mental rejuvenation and offers insightful tips on maximizing concentration in our fast-paced, digital world.

Michael Snyder, director at Stanford's Center for Genomics and Personalized Medicine, dives into the intriguing science of aging. He discusses how aging isn't linear but occurs in dramatic bursts around ages 40, 60, and 80. Listeners learn about key physiological changes like increased visceral fat and declining immune function. Snyder emphasizes how lifestyle choices in your 40s can influence health later in life and shares groundbreaking research on enhancing healthspan through lifestyle and scientific interventions.

Ian Sample, Science editor at The Guardian, discusses the revolutionary IVF technique that has led to the birth of eight healthy babies using DNA from three parents. He highlights the desperate battle against mitochondrial diseases that this method addresses. Prof. Sir Doug Turnbull shares insights from the 25-year journey to achieve this breakthrough, emphasizing the emotional weight for families affected. The podcast navigates the ethical dilemmas and regulatory challenges surrounding this innovative approach, offering a hopeful glimpse into the future of reproductive medicine.

Discover the groundbreaking advancements in lab-grown organs, including the creation of tiny blood vessels, and the ethical dilemmas they present. Dive into the climate crisis faced by Tuvalu, showcasing a pioneering climate visa for citizens relocating to Australia. Explore the emotional ramifications of resettlement and the innovative strategies for preserving sovereignty amid rising seas. Finally, witness the cosmic spectacle of two black holes colliding, opening new doors to understanding the universe's mysteries.