Keeping skin healthy is a booming industry, and yet it seems like almost no one agrees on what actually works. What one person says is vital another says is toxic. We have not cured acne or eczema, allergies keep getting worse, and autoimmune conditions are becoming increasingly common. In Clean, doctor and journalist James Hamblin explores how we got here, examining the science and culture of how we care for our skin today.

AudioLearn's Medical School Crash Courses presents Dermatology. Written by experts and authorities in the field and professionally narrated for easy listening, this crash course is a valuable tool both during school and when preparing for the USMLE, or if you're simply interested in the subject of dermatology.

Every year, nearly 80 million Americans will consult their doctors about their skin. Unfortunately, however, the vast majority will receive only a surface-level treatment. Skin doesn't lie; it reflects overall health in unimaginable ways. In The Beauty of Dirty Skin, internationally renowned dermatologist and scientist Dr. Whitney Bowe explains how the spectrum of skin disorders - from stubborn acne and rosacea to psoriasis and premature wrinkling - are manifestations of irregularities rooted in the gut.

Caroline Hirons is the authority in skincare - and for the first time, she’s sharing her knowledge with the world. With more than 100 million views of her blog and more than 13 million views of her YouTube videos, she cuts out the jargon, tells you want you do and don’t need and is finally going to get everyone off face wipes for good!

When we think of fungi, we likely think of mushrooms. But mushrooms are only fruiting bodies, analogous to apples on a tree. Most fungi live out of sight, yet make up a massively diverse kingdom of organisms that supports and sustains nearly all living systems. Fungi provide a key to understanding the planet on which we live, and the ways we think, feel, and behave.

You wake up and feel a tickle in your throat. Your head hurts. You’re mildly annoyed as you get the kids ready for school and dress for work yourself. Meanwhile, an epic war is being fought, just below your skin. Millions are fighting and dying for you to be able to complain as you head out the door. So what, exactly, is your immune system? In Immune, Philipp Dettmer, the brains behind the most popular science channel on YouTube, takes listeners on a journey through the fortress of the human body and its defenses. 

There is nothing more essential to our health and well-being than breathing. Yet, as a species, humans have lost the ability to breathe correctly, with grave consequences. Journalist James Nestor travels the world to figure out what went wrong and how to fix it. The answers aren’t found in pulmonology labs, as we might expect, but in the muddy digs of ancient burial sites, secret Soviet facilities, New Jersey choir schools, and the smoggy streets of São Paulo. Nestor tracks down men and women exploring the hidden science behind ancient breathing practices.

"There is the mammal way and there is the bird way." But the bird way is much more than a unique pattern of brain wiring, and lately, scientists have taken a new look at bird behaviors they have, for years, dismissed as anomalies or mysteries - what they are finding is upending the traditional view of how birds conduct their lives, how they communicate, forage, court, breed, survive. They are also revealing the remarkable intelligence underlying these activities, abilities we once considered uniquely our own.

Bill Bryson once again proves himself to be an incomparable companion as he guides us through the human body - how it functions, its remarkable ability to heal itself, and (unfortunately) the ways it can fail. Full of extraordinary facts (your body made a million red blood cells since you started reading this) and irresistible Bryson-esque anecdotes, The Body will lead you to a deeper understanding of the miracle that is life in general and you in particular. As Bill Bryson writes, "We pass our existence within this wobble of flesh and yet take it almost entirely for granted."

An informative and entertaining look at the world of the Internet’s favorite dermatologist, Put Your Best Face Forward offers essential information on skin care, whether you’re hitting adolescence or the middle years - including acne treatments, anti-aging advice, step-by-step tutorials, prevention, and tips.  

We all know that without water we couldn't survive, and that sometimes a cup of coffee or a glass of wine feels just as vital. But do we really understand how much we rely on liquids, or the destructive power they hold? Set over the course of a flight from London to San Francisco, Liquid Rules offers listeners a fascinating tour of these formless substances, told through the language of molecules, droplets, heartbeats, and ocean waves.

An enthralling account of a modern voyage of discovery as we meet the clever, social birds of prey called caracaras, which puzzled Darwin, fascinate modern-day falconers, and carry secrets of our planet's deep past in their family history.

In Mitochondria and the Future of Medicine, naturopathic doctor Lee Know tells the epic story of mitochondria - the widely misunderstood and often-overlooked powerhouses of our cells. The legendary saga began over two billion years ago, when one bacterium entered another without being digested, which would evolve to create the first mitochondrion. Since then, for life to exist beyond single-celled bacteria, it's the mitochondria that have been responsible for this life-giving energy.

Science is a force for good in the world - at least usually. But sometimes, when obsession gets the better of scientists, they twist a noble pursuit into something sinister. Under this spell, knowledge isn’t everything, it’s the only thing - no matter the cost. Best-selling author Sam Kean tells the true story of what happens when unfettered ambition pushes otherwise rational men and women to cross the line in the name of science, trampling ethical boundaries and often committing crimes in the process.

 Oxygen takes the listener on an enthralling journey, as gripping as a thriller, as it unravels the unexpected ways in which oxygen spurred the evolution of life and death.