Epigenetics is the science of living DNA, charting the chemical pathways that spur DNA into action by turning genes on and off. While the Human Genome Project of the early 2000s was hailed as the key to understanding human heredity and disease, that historic effort was just the beginning. It has taken epigenetics to fill in the picture, explaining how the fixed code of our genome is implemented in countless living processes.

The proliferation of social media platforms and our increasing reliance on the internet for connection and communication has caused the line between the “real” world and the online world to blur. So much of our lives can be impacted by online interactions—and not all those interactions are positive. Why does the internet seem to encourage bad behavior from some users? Why do we feel we need to share so much of our private lives with the online world? Is screen time really as addictive as the headlines say?

As recently as 1990, it seemed plausible that the solar system was a unique phenomenon in our galaxy. Thanks to advances in technology and clever new uses of existing data, now we know that planetary systems and possibly even a new Earth can be found throughout galaxies near and far.

One of the most complicated and advanced computers on Earth can't be purchased in any store. This astonishing device, responsible for storing and retrieving vast quantities of information that can be accessed at a moment's notice, is the human brain. How does such a dynamic and powerful machine make memories, learn a language, and remember how to drive a car? What habits can we adopt in order to learn more effectively throughout our lives? The answers to these questions are merely the tip of the iceberg in The Learning Brain.

Words. We use them all the time, every day, mostly without giving them much thought at all. We take for granted that they’re here at our disposal whenever we need them. But if you’ve ever wished you could communicate more effectively, words are the place to start. It’s incumbent upon you to choose the best words to accomplish your goals, because how you choose to communicate influences—well, everything! The power of communication shapes our professional goals, our relationships, and our lives—so the words we choose to use carry a great deal of power.

Propaganda and Persuasion gives you a one-of-a-kind opportunity to explore the powerful, fascinating, and at times dangerous world of influence. Taught by Professor Dannagal G. Young of the University of Delaware, these 12 eye-opening lectures arm you with the tools of effective communication and the insight to understand—and perhaps resist—persuasion in all its forms.

Taught by award-winning Professor Patrick Grim of the State University of New York at Stony Brook, The Philosopher’s Toolkit: How to Be the Most Rational Person in Any Room arms you against the perils of bad thinking and supplies you with an arsenal of strategies to help you be more creative, logical, inventive, realistic, and rational in all aspects of your daily life.

Embark on a journey to the very beginning of writing as a tool of language and see how the many threads of history and linguistics came together to create the alphabet that forms the foundation of English writing. Your guide is Professor John McWhorter of Columbia University and in the 16 lectures of Ancient Writing and the History of the Alphabet, he will help you navigate the complex linguistic and cultural history behind one of our most crucial tools of communication.

In this 24-lesson course aimed at non-scientists, noted particle physicist Dr. Don Lincoln of Fermi National Accelerator Laboratory covers more than a century of progress in physics, describing exactly how scientists reach the conclusions they do. He starts with the atom, which was long hypothesized but wasn’t definitively proven until a paper by Albert Einstein in 1905. That was just the beginning, as researchers probed ever deeper into the atom’s complex structure, leading to the weird findings of quantum mechanics.

In this illuminating Audible Original, Professor Wind Goodfriend explores the various facets of social psychology, including how we form personal identities, the importance of perceptions, the human need to be liked and respected, stereotypes and prejudices, and more. Social psychology can be both fascinating in its own right and, ideally, applicable to your everyday life.

"It doesn't take an Einstein to understand modern physics," says Professor Wolfson at the outset of these 24 lectures on what may be the most important subjects in the universe: relativity and quantum physics. Both have reputations for complexity. But the basic ideas behind them are, in fact, simple and comprehensible by anyone. These dynamic and illuminating lectures begin with a brief overview of theories of physical reality starting with Aristotle and culminating in Newtonian or "classical" physics.

How the Earth Works takes you on an astonishing journey through time and space. In 48 lectures, you will look at what went into making our planet - from the big bang, to the formation of the solar system, to the subsequent evolution of Earth.

Between 1861 and 1865, the clash of the greatest armies the Western hemisphere had ever seen turned small towns, little-known streams, and obscure meadows in the American countryside into names we will always remember. In those great battles, those streams ran red with blood-and the United States was truly born.

Chemistry and Our Universe: How It All Works is your in-depth introduction to this vital field, taught through 60 engaging half-hour lectures that are suitable for any background or none at all. Covering a year’s worth of introductory general chemistry at the college level, plus intriguing topics that are rarely discussed in the classroom, this amazingly comprehensive course requires nothing more advanced than high-school math. Your guide is Professor Ron B. Davis, Jr., a research chemist and award-winning teacher at Georgetown University.

Understanding our humanity - the essence of who we are - is one of the deepest mysteries and biggest challenges in modern science. Why do we have bad moods? Why are we capable of having such strange dreams? How can metaphors in our language hold such sway on our actions? As we learn more about the mechanisms of human behavior through evolutionary biology, neuroscience, anthropology, and other related fields, we're discovering just how intriguing the human species is.

No Calculator? No Problem! Mastering Mental Math , award-winning professor of mathematics and celebrated “mathemagician” Arthur T. Benjamin delivers 10 fun-filled lessons on how to do math in your head with confidence, accuracy, and speed - sometimes faster than a calculator. By the end of Professor Benjamin’s lessons, you’ll be able to add, subtract, multiply, and divide numbers faster than ever before. And with your newfound skills, you’ll soon find yourself amazing other people and, perhaps more important, yourself.

Education can be enriching and transformative. It can also be downright excruciating—even demoralizing. When it comes to learning, why are some of us lovers and some of us haters? Welcome to the world of educational psychology, which uses science to explore what causes people to engage and learn, and what we can do to make learning opportunities more enjoyable and impactful. Spoiler alert: Teachers can only do so much. Students, too, must take control of their learning. Unfortunately, many of us never, ahem, learned the skills to do just that.

In this illuminating Audible Original, Professor Wind Goodfriend explores the various facets of social psychology, including how we form personal identities, the importance of perceptions, the human need to be liked and respected, stereotypes and prejudices, and more. Social psychology can be both fascinating in its own right and, ideally, applicable to your everyday life.

In 10 riveting episodes, paleoanthropologist Elen Feuerriegel takes you on an unrivaled tour of the human fossil record in search of the biological and behavioral underpinnings of our very “humanness”.

Rachel Pacheco, professor of management at Georgetown University’s McDonough Business School and a former chief people officer, will give you tools and tips that will immediately and positively affect how you manage people, despite differences in communication styles or personalities. With seven research-backed lessons, including suggested exercises, this course will help you develop and practice the skills to ultimately make you more fulfilled, competent, and successful in your role.

Whatever the form, whatever the treat - sugar drives us wild like nothing else. It’s lingered on our tongues for millennia and found its way into almost every household in the world. Alas, the history of sugar is far from sweet. Long before it was linked to America’s obesity epidemic, sugar was fueling the dark forces of exploitation, colonization, conquest, and slavery. More than just candy and cake, sugar has drastically altered the diets, cultures, and economies of the modern world. How can we love sugar while having a healthy relationship with its bittersweet history?

Who wrote Great Expectations? That’s easy: Charles Dickens. Who’s the author of Beloved? Toni Morrison, of course. Now how about the Old Testament? You’d think for a book as widely known, studied, and distributed as the Bible, the question of authorship would have been sorted out by now. But the question is more complex (and fascinating) than it seems. Why? Because asking it is to challenge everything we might assume about the Bible’s identity as a book, about what “writing” and “authorship” really mean, and about how a written text could become sacred.

We might be afraid of lions, tigers, and bears (oh, my!), but much more frequently, our worst foes come without teeth and claws and in teeny, tiny packages. In These Six Things Will Kill You, medical historian Brandy Schillace introduces you to half a dozen deadly forces, often microscopic and invisible, that might be coming for you at this very moment.

What is love? It's more scientific than you think. Through 10 lectures, Dr. Wind Goodfriend surveys the biology of interpersonal attraction, sexual preference and desire, and conflict resolution. You'll look at a variety of romantic notions, common myths, and love stereotypes through the lens of science in order to break them down and better set expectations when it comes to keeping a long-term relationship happy and healthy. You'll apply biology, psychology, and anthropology to that "spark" we feel when we are attracted to someone, to better understand what that feeling is.

What are your beliefs about money management? What are your emotions about it? If someone asked you about your short- and long-term money goals, what would you say? Questions like these are essential for anyone building a money-management plan, but they’re less about the line-by-line details of taxes and investment holdings and more about your approach to saving money and spending it—and preparing for the future.

Bertrand Russell wrote that mathematics can exalt "as surely as poetry". This is especially true of one equation: ei(pi) + 1 = 0, the brainchild of Leonhard Euler, the Mozart of mathematics. More than two centuries after Euler's death, it is still regarded as a conceptual diamond of unsurpassed beauty. Called Euler's identity, or God's equation, it includes just five numbers but represents an astonishing revelation of hidden connections.

Meet Agatha Christie, the best-selling novelist in human history. Her writing career spanned six decades, during which time she wrote 66 crime novels, 6 non-crime novels (including romances), and over 150 short stories. Not only was she a phenomenally successful novelist, but she is also the most successful female playwright of all time - her play “The Mousetrap” is the longest-running show in history. As you learn about Christie’s experiences and her storied career, you will better understand how the circumstances of her life shaped her work and vice versa.

How did a young tradesman in early 18th-century Philadelphia with no money, no connections, and no formal education end up as a leading scientist, an inventor, a master diplomat - and even a Founding Father of the United States of America? He used the same resource we have inside ourselves: a capacity for self-improvement.

Thinking of starting a consulting business? Knowing how to craft an effective business plan is the first step. What’s next? Finding clients and knowing how much to charge. Plus, the consultancy must be properly marketed. And don’t forget other aspects of consulting, from answering an RFP to knowing when to walk away from a problem client. This business course from The Teaching Company and lecturer Dr. Allison Friederichs delivers all this and more.

From Halloween costumes to patriotic parades to belly-busting meals, every holiday tradition tells a unique story—one encoded in symbols and layered meanings that stretch back over the centuries. In 19 lectures, professional storyteller Dr. Hannah B. Harvey takes listeners through the seasons and investigates the surprising stories behind seemingly odd holiday traditions.