The Pulse

How does nature make durable materials like corals and seashells without a heat or a kiln? How do peacock feathers get their beautiful colors? Scientists are trying to understand these processes and to replicate them for sustainable human products and design. The field of biomimicry is growing. We'll explore its origins and hear about some of the latest innovations.Learn more about sponsor message choices: podcastchoices.com/adchoicesNPR Privacy Policy

This month marks the 20th anniversary of Terri Schiavo's death. She was diagnosed as being in a persistent vegetative state after cardiac arrest, but family members argued fiercely over her level of awareness, and whether to continue life support. We explore how the case shaped our views of consciousness, and what researchers are learning about hopes of recovery after brain damage.Learn more about sponsor message choices: podcastchoices.com/adchoicesNPR Privacy Policy

We all have digital footprints — unique trails of data based on our online activities that corporations use to predict our behavior and influence our choices. Sometimes, it can be helpful; other times, it can feel creepy and intrusive. On this episode, we talk with computational scientist Sandra Matz about what makes up our digital footprints, what they reveal about us, and how they're being used.Learn more about sponsor message choices: podcastchoices.com/adchoicesNPR Privacy Policy

When we don't like how we look, or are hypercritical about our appearance, it can really do a number on our mental health. On this episode, we explore the connection between how we look and how we feel, from the unexpected emotional consequences of cosmetic surgery, to why dermatologists and psychologists have joined forces to form a new field.Learn more about sponsor message choices: podcastchoices.com/adchoicesNPR Privacy Policy

For more than 15 years, bipolar disorder defined Abigail Kafka's life. Abigail was heavily medicated, unable to work, or have a social life. Then a therapy session introduced a startling question: What if this diagnosis was wrong? On this episode, we'll discuss what contributed to an explosion of bipolar diagnoses, and why experts disagree whether this disorder is over-or underdiagnosed.Learn more about sponsor message choices: podcastchoices.com/adchoicesNPR Privacy Policy

Marty McCary is a renowned surgeon and public policy researcher, while Cara Anthony investigates trauma and violence as a reporter, and Rachel Yehuda is a distinguished professor studying intergenerational trauma. They discuss how outdated medical guidelines on peanut allergies led to unintended consequences and highlight the shocking legacy of trauma within communities, particularly among descendants of Holocaust survivors. The conversation dives into the importance of understanding these ripple effects for better health outcomes and emotional healing.

Whether we're talking about something as small as our work habits, or as big as public health policy, change can be tough. It requires energy, courage and persistence, that, a lot of the time, can feel impossible to muster. On this episode, we explore what it is that motivates individuals to change — both themselves and the world around them.Learn more about sponsor message choices: podcastchoices.com/adchoicesNPR Privacy Policy

Ahead of Valentine's Day, we explore the modern world of dating — and why so many people are frustrated with it. We talk with a behavioral scientist and dating coach Logan Ury about best practices for online dating, learn about researchers building a new dating app, and hear stories about successful and not-so-successful efforts to find love.Learn more about sponsor message choices: podcastchoices.com/adchoicesNPR Privacy Policy

Every day, our bodies come in contact with all kinds of potentially harmful things that we can't always see or smell — but which can have real consequences for our environment and health. On this episode, we explore exposure from sunlight to black plastic to hazardous chemicals from the East Palestine train derailment, and ask how we can protect ourselves.Learn more about sponsor message choices: podcastchoices.com/adchoicesNPR Privacy Policy

In college, Olivia Walch was a self-described "sleep deprivation cowboy." She would go days with only 3 to 4 hours of sleep and then binge sleep at other times. But soon, it all caught up with her. Now, she's a sleep researcher at the University of Michigan with a simple message: Sleep regularity is key — as is darkness. She joins host Maiken Scott to discuss her new book "Sleep Groove: Why Your Body's Clock Is So Messed Up And What to Do About It."Learn more about sponsor message choices: podcastchoices.com/adchoicesNPR Privacy Policy