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Sleep is one of the most important but least understood aspects of our life, wellness, and longevity. Until very recently, science had no answer to the question of why we sleep, or what good it served, or why we suffer such devastating health consequences when we don't sleep. Compared to the other basic drives in life - eating, drinking, and reproducing - the purpose of sleep remained elusive.

Sleep is the foundation of good health, yet so many of us struggle to get enough of it—or to separate fact from fiction when it comes to sleep advice. In this episode of the Petal and Pivot Podcast, I break down the science of why sleep matters, share five simple (and totally free) ways to improve your nightly rest, and bust some of the biggest myths around popular sleep trends.This episode is classic Petal and Pivot—practical, science-backed, and designed to help you take small steps that make a big difference. We’d love to hear from you: what sleep challenges do you face, and what ...

Sleep is the hottest of hot topics. Experts queue up to warn us that lack of sleep, or the wrong kind, will bring down a bewildering array of dire consequences. But how do we keep from being overwhelmed by this deluge of data? What if all this knowledge just feeds anxiety and drives sleep even further from our grasp? Heather Darwall-Smith's message is simple: Don't panic! Humans are biologically programmed to sleep - and by interrogating the factors that might impede this innate instinct, we can make changes in our lifestyles and find our way back to good sleep.

Sloths are the slowest mammals on earth. They can hardly see. They live in rainforests among jaguars, pumas, and countless other predators. Yet they survive. And they do it by being so incredibly slow, and living a life covered in algae. In this episode, we hang with a sloth in the jungle of Costa Rica as he spends a month digesting one single leaf, and we see the symbiosis and collaboration that surrounds him.

In this episode of The Healing Catalyst, Dr. Avanti Kumar-Singh sits down with world-renowned sleep expert Dr. Michael Breus—better known as The Sleep Doctor—for a deep dive into the science of sleep. Together, they unpack the power of what Dr. Breus calls sleep chronotypes: your genetic “sleep personality” that reveals whether you thrive as an early-rising lion, a steady bear, a creative night-owl wolf, or a restless dolphin. These chronotypes, hardwired by your genes and hormones, offer a blueprint for aligning your lifestyle with your natural rhythm—transforming everything from ...

Table of Contents: The Importance of Sleep The Science of Sleep Measuring Sleep Factors Influencing Sleep Common Sleep Disorders The Impact of Technology on Sleep Sleep Across Cultures Strategies for Better Sleep The Future of Sleep Research Conclusion

The Science of Sleep, by developmental molecular biologist Dr. John Medina, gives you the facts - and the prescription to sleep well - in his signature engaging style. Adapted from Medina's Brain Rules for Aging Well: 10 Principles for Staying Vital, Happy, and Sharp, you'll learn how the sleep cycle is born of a constant tension between hormones and brain regions vying to keep you awake and hormones and brain regions trying to make you go to sleep. This is called opponent-process theory.

Includes books one and two in the Sleeping Gods series: Endeavor and Erebus.

Humpback whales are among the most intelligent animals on Earth. Some scientists believe they might even surpass humans in self-awareness, empathy, and communication skills. In this episode, we swim with a whale as he teams up with other humpbacks to use bubbles to catch fish, rescues a sea lion, and puts his own spin on melodies sung by whales across the Pacific Ocean. This is the world in its natural state, defined by seasons, routines, and cycles. By the time this whale is ready to close one eye and go to sleep, you will be too.

Sleep is the subject of intense scientific debate among biologists and neuroscientists. Why must we spend about one-third of our lives asleep? What exactly is sleep? Why does a lack of sleep impair our cognitive abilities and leave us vulnerable to a host of medical issues ranging from obesity to reduced resistance to infectious disease?

For many people who have trouble sleeping, each night is an anxious odyssey where getting a good night’s sleep feels like a battle to win rather than a basic biologic process. Hello Sleep is a guide for people with insomnia to help them shift their relationship with sleep, so that it stops being a battle and starts being enjoyable and natural again. It is a practical, self-guided tour through evidence-based interventions for chronic insomnia.

We’ve got bedtime down to a (Sleep Tight) Science! Sleep Tight Science is an engaging bedtime show that makes science accessible and enjoyable for the whole family. Snuggle in and drift off to sleep while learning about science topics submitted by listeners! Designed for curious young minds (but simple enough for grown-ups to understand), Sleep Tight Science uses big words to answer big questions that kids wonder about, like why do we feel icky sometimes and how do our legs help us move? Learn something new about the natural world while drifting off to dreamland. Have an interesting science ...

Dogs are a familiar and comforting part of many of our lives. In this episode, we take a walk with a pet xoloitzcuintli, or Mexican hairless dog, as he greets his blocks by smell. Along the way, we learn the backstory of squirrels in U.S. cities and observe the very smart and clean neighborhood raccoon.

Elephants are the largest land animals in the world. They are also intensely social and have advanced long-term memories. In this episode, a parade of Asian elephants makes its way through the Sri Lankan forest to a lake for drinks and mud baths, stopping periodically for group naps. The female leading the parade uses infrasonic rumbles—inaudible to humans, but traveling as far as two miles along the surface of the Earth as seismic waves—to invite friends and family around the forest to join her at the reservoir.

Dung beetles might sound dirty, but the ancient Egyptians believed their god took the form of a dung beetle to roll the morning sun across the sky every day. In this episode, we roll with dung beetles around the world as they push their precious dung—often in balls many times larger than they are—over Florida pastures, Armenian highlands, and the vast South African savanna.

Fennec foxes’ ears can be up to half as long as their bodies. They use them to track movement across the Sahara Desert, including under the sand. In this episode, we follow a fox as he meanders home to his family through the sand dunes as they slowly shift with the wind.

Platypuses are mammals unlike any other on earth. They lay eggs, ooze milk through their skin, and can sense electricity. In this episode, we travel with a platypus as he moves through his nightly routine on the island of Tasmania. He uses electroreceptors to hunt underwater and does a synchronized swimming courtship ritual with his mate, who then digs a burrow 40 feet deep into the riverbank to nest.

Brown bears lead deeply cyclical lives. They need to gain sometimes hundreds of pounds during the warmer months to prepare for winter hibernation, a lifestyle that brings them into frequent contact with many other species’ cycles. In this episode, we meander through the Alaska peninsula with a bear and her cubs as she teaches them to hunt salmon at the falls, dig for clams along the coastal mudflats, and use the regional rubbing tree.

Crows have long been the subject of folklore, likely because they’re strikingly similar to humans, leading lives rich in personality, intelligence, and relationships. In this episode, we fly the streets of Seattle with a crow as she grooms her mate, delivers what appears to be a gift, and finally commutes miles away from her territory to gather and chat with thousands of other crows before it’s time to roost for the night.

Daniel Everett, then a Christian missionary, arrived among the Pirahã in 1977 - with his wife and three young children - intending to convert them. What he found was a language that defies all existing linguistic theories and reflects a way of life that evades contemporary understanding. The Pirahã have no counting system and no fixed terms for color. They have no concept of war or of personal property.