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From hog hair toothbrushes and cavities packed in linen to rechargeable electric toothbrushes and laser dentistry, dental care has come a long way. Over thousands of years, as the field of dentistry has evolved, research has provided answers to the gross but fascinating science that's behind bad breath and cavities. This comprehensive guide offers readers the chance to learn about the thousands, sometimes millions, of microorganisms that live in people's mouths, the history of oral hygiene, and the many myths, facts, causes, and treatments related to bad breath and cavities.
From hog hair toothbrushes and cavities packed in linen to rechargeable electric toothbrushes and laser dentistry, dental care has come a long way. Over thousands of years, as the field of dentistry has evolved, research has provided answers to the gross but fascinating science that's behind bad breath and cavities. This comprehensive guide offers readers the chance to learn about the thousands, sometimes millions, of microorganisms that live in people's mouths, the history of oral hygiene, and the many myths, facts, causes, and treatments related to bad breath and cavities.
Kids love gross things, and germs are among the grossest. This engaging volume capitalizes on the grossness factor, while covering the science behind germs, what they are, where they are found, and how they cause diseases. It gives kids the information they need to stay clean and healthy without fearing germs. Readers will learn that most bacteria do not cause diseases, but provide us with food and medicines, and help maintain soil and other ecosystems. This book also cautions against overkill of germs, which can lead to antibiotic resistance and super-bacteria.
A New York Times Bestseller A Washington Post Notable Nonfiction Book of 2020 Named a Best Book of 2020 by NPR “A fascinating scientific, cultural, spiritual and evolutionary history of the way humans breathe—and how we’ve all been doing it wrong for a long, long time.” —Elizabeth Gilbert, author of Big Magic and Eat Pray Love No matter what you eat, how much you exercise, how skinny or young or wise you are, none of it matters if you’re not breathing properly. There is nothing more essential to our health and well-being than breathing: take air in, let it out, repeat twenty-five thousand times a day. 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 like Pranayama, Sudarshan Kriya, and Tummo and teams up with pulmonary tinkerers to scientifically test long-held beliefs about how we breathe. Modern research is showing us that making even slight adjustments to the way we inhale and exhale can jump-start athletic performance; rejuvenate internal organs; halt snoring, asthma, and autoimmune disease; and even straighten scoliotic spines. None of this should be possible, and yet it is. Drawing on thousands of years of medical texts and recent cutting-edge studies in pulmonology, psychology, biochemistry, and human physiology, Breath turns the conventional wisdom of what we thought we knew about our most basic biological function on its head. You will never breathe the same again.
From the bestselling author of Oh, Yuck! and Oh, Yikes!, with over 1.25 million copies in print, here is an A-Z compendium of hands-on grossness. Featuring 114 interactive experiments and ick-tivities, Oh, Ick! delves into the science behind everything disgusting. Stage an Ooze Olympics to demonstrate viscosity and the nature of slime. Observe how fungi grow by making a Mold Zoo. Embark on an Insect Safari to get to know the creepy crawlies around your home. And learn what causes that embarrassing acne on your face by baking a Pimple Cake to pop—and eat. Eww!
A book about metals, plants, animals, and planets.
This report considers the biological and behavioral mechanisms that may underlie the pathogenicity of tobacco smoke. Many Surgeon General's reports have considered research findings on mechanisms in assessing the biological plausibility of associations observed in epidemiologic studies. Mechanisms of disease are important because they may provide plausibility, which is one of the guideline criteria for assessing evidence on causation. This report specifically reviews the evidence on the potential mechanisms by which smoking causes diseases and considers whether a mechanism is likely to be operative in the production of human disease by tobacco smoke. This evidence is relevant to understanding how smoking causes disease, to identifying those who may be particularly susceptible, and to assessing the potential risks of tobacco products.
If you have bad breath, bleeding gums, cavities, or tooth pain—you need this book! If you suffer from asthma, diabetes, arthritis, migraine headaches, or any chronic illness, and have not found relief, this book could have the solution you need. All disease starts in the mouth! As incredible as it may seem, most of the chronic and infectious illnesses that trouble our society today are influenced by the healthy of our mouths. Our mouths are a reflection of the health inside our bodies. If you have poor dental health, you are bound to have other health problems. Despite regular brushing and flossing, over 90 percent of the population has some degree of gum disease or tooth decay. Most people aren’t even aware they have existing dental problems. Recent research has demonstrated a direct link between oral health and chronic illness. Simply improving the health of your teeth and gums can cure many chronic problems. More brushing, flossing, and mouthwash isn’t the solution. What will work is Oil Pulling Therapy. Oil pulling is an age-old method of oral cleansing originating from Ayurvedic medicine. It is one of the most powerful, most effective methods of detoxification and healing in natural medicine. In this book, Dr. Fife combines the wisdom of Ayurvedic medicine with modern science. The science behind oil pulling is fully documented with references to medical studies and case histories. Although incredibly powerful, Oil Pulling Therapy is completely safe and simple enough for even a child.