Short Wave

Explore the profound shifts in our planet due to human activities as we dive into the Anthropocene epoch. Discover the debate among scientists about its origins, from ancient practices to the industrial revolution. Learn about the quest for geological markers that define this new era and the potential implications linked to mid-20th-century events. The discussion also prompts reflections on humanity's environmental legacy, particularly highlighting the atomic bomb as a pivotal moment, urging a confrontation with challenging truths for a hopeful future.

Psychedelics like ketamine and psilocybin are getting a second look as a way to treat psychiatric problems like depression, anxiety, substance use disorders, even PTSD. NPR neuroscience correspondent Jon Hamilton explains how these drugs are helping brain scientists understand what causes mental illness and find new ways to treat it. Email the show at shortwave@npr.org.See pcm.adswizz.com for information about our collection and use of personal data for sponsorship and to manage your podcast sponsorship preferences.NPR Privacy Policy

Sarah Zhang, a science reporter for The Atlantic known for her insights into the science of smell, discusses the lingering effects of COVID-19, particularly the loss of smell. She explores how smell training can aid recovery for those affected and shares the emotional journey of individuals, like Ruby Martinez, navigating their relationship with scents. The podcast dives into how olfactory experiences shape memories and emotions, illustrating the complex journey from loss to regaining this vital sense.

Nell Greenfieldboyce, NPR science correspondent and expert on animal communication, takes us into the underground world of naked mole rats. Discover how these remarkable creatures possess their own unique dialects, communicating through a fascinating variety of chirps. Nell shares insights into their social dynamics, especially during leadership changes, and how their vocalizations mirror aspects of human language. This research could be key to understanding language acquisition in mammals and sheds light on the complexities of animal communication.

Allison Aubrey, an NPR health correspondent, shares her insights on the current state of COVID-19 vaccinations and rising case numbers. Despite over 61 million fully vaccinated individuals in the U.S., infections are increasing in at least 20 states. The conversation includes the impact of relaxed restrictions, updated CDC travel guidelines, and rising air travel. Aubrey discusses the importance of personal responsibility, the challenges of vaccine efficacy, and the exciting progress in teen vaccination efforts.

Rhitu Chatterjee, an NPR health correspondent specializing in mental health, discusses the critical issue of suicide prevention. He emphasizes the importance of identifying warning signs in loved ones and how early intervention can make a difference. The conversation highlights effective ways to approach those at risk, including open communication and practical support techniques. Chatterjee also addresses the emotional burden on those supporting at-risk individuals, stressing the necessity of self-care amidst these challenges.

Seasonal allergies are on the rise, with seasons getting longer and pollen levels soaring. Experts discuss how climate change is contributing to this issue by increasing pollen due to higher temperatures and carbon dioxide. Personal stories highlight the growing intensity of allergy symptoms, while practical management tips are shared, like closing windows and showering after outdoor exposure. Inclusivity in discussing allergies and related health issues is emphasized, making this conversation both informative and relatable.

Skin conditions often manifest differently on darker skin, yet medical literature frequently overlooks this vital information. The discussion shines a light on a dermatologist's initiative to improve representation in academic resources. Historical inequalities in dermatological care are examined, revealing the consequences of a one-size-fits-all approach. Advocates in the field emphasize the need for tailored patient care and greater awareness to improve health outcomes, ensuring that all skin types receive the attention they deserve.

When lightning strikes, it creates fulgurite, a fascinating glass-like rock. The formation of these rare geological wonders reveals potential connections to the origins of life on Earth. They often contain phosphorus, a critical element for life, suggesting lightning may have played a crucial role in early life formation. This discussion also opens up intriguing possibilities about life's potential in the universe beyond meteorite theories. Scientists explore how these phenomena shed light on both our planet's history and the quest for life elsewhere.

Ariel Waldman, a wildlife filmmaker and NASA advisor, takes us on an adventure through Antarctica's hidden microbial world. She discusses the astonishing diversity of life, including resilient tardigrades that flourish in extreme conditions. Waldman emphasizes the importance of visual storytelling to bridge the gap between science and the public. Her thrilling discoveries of microscopic marine life shed light on these tiny ecosystems, revealing the ecological roles that often go unnoticed in one of Earth's coldest environments.