Plants and the Human Brain PDF Download

Author: David O. Kennedy
Publisher: Oxford University Press
ISBN: 019991401X
Category : Science
Languages : en
Pages : 395

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Book Description
Discusses how plant-based chemicals affect and interact with the human brain and its evolution.

Author: David O. Kennedy
Publisher: Oxford University Press
ISBN: 0199914028
Category : Science
Languages : en
Pages : 304

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Book Description
We're all familiar with the idea that plant-derived chemicals can have an impact on the functioning of the human brain. Most of us reach for a cup of coffee or tea in the morning, many of us occasionally eat some chocolate, some smoke a cigarette or take an herbal supplement, and some people use illicit drugs. We know a great deal about the mechanisms by which the psychoactive components of these various products have their effects on human brain function, but the question of why they have these effects has been almost totally ignored. This book sets out to describe not only how, in terms of pharmacology or psychopharmacology, but more importantly why plant- and fungus-derived chemicals have their effects on the human brain. The answer to this last question resides, in part, with the terrestrial world's two dominant life forms, the plants and the insects, and the many ecological roles the 'secondary metabolite' plant chemicals are trying to play; for instance, defending the plant against insect herbivores whilst attracting insect pollinators. The answer also resides in the intersecting genetic heritage of mammals, plants, and insects and the surprising biological similarities between the three taxa. In particular it revolves around the close correspondence between the brains of insects and humans, and the intercellular signaling pathways shared by plants and humans. Plants and the Human Brain describes and discusses both how and why phytochemicals affect brain function with respect to the three main groups of secondary metabolites: the alkaloids, which provide us with caffeine, a host of poisons, a handful of hallucinogens, and most drugs of abuse (e.g. morphine, cocaine, DMT, LSD, and nicotine); the phenolics, including polyphenols, which constitute a significant and beneficial part of our natural diet; and the terpenes, a group of multifunctional compounds which provide us with the active components of cannabis and a multitude of herbal extracts such as ginseng, ginkgo and valerian.

Author: Michael Pollan
Publisher: Penguin
ISBN: 0593296915
Category : Body, Mind & Spirit
Languages : en
Pages : 289

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Book Description
The instant New York Times bestseller | A Washington Post Notable Book | One of NPR's Best Books of the Year “Expert storytelling . . . [Pollan] masterfully elevates a series of big questions about drugs, plants and humans that are likely to leave readers thinking in new ways.” —New York Times Book Review From #1 New York Times bestselling author Michael Pollan, a radical challenge to how we think about drugs, and an exploration into the powerful human attraction to psychoactive plants—and the equally powerful taboos. Of all the things humans rely on plants for—sustenance, beauty, medicine, fragrance, flavor, fiber—surely the most curious is our use of them to change consciousness: to stimulate or calm, fiddle with or completely alter, the qualities of our mental experience. Take coffee and tea: People around the world rely on caffeine to sharpen their minds. But we do not usually think of caffeine as a drug, or our daily use as an addiction, because it is legal and socially acceptable. So, then, what is a “drug”? And why, for example, is making tea from the leaves of a tea plant acceptable, but making tea from a seed head of an opium poppy a federal crime? In This Is Your Mind on Plants, Michael Pollan dives deep into three plant drugs—opium, caffeine, and mescaline—and throws the fundamental strangeness, and arbitrariness, of our thinking about them into sharp relief. Exploring and participating in the cultures that have grown up around these drugs while consuming (or, in the case of caffeine, trying not to consume) them, Pollan reckons with the powerful human attraction to psychoactive plants. Why do we go to such great lengths to seek these shifts in consciousness, and then why do we fence that universal desire with laws and customs and fraught feelings? In this unique blend of history, science, and memoir, as well as participatory journalism, Pollan examines and experiences these plants from several very different angles and contexts, and shines a fresh light on a subject that is all too often treated reductively—as a drug, whether licit or illicit. But that is one of the least interesting things you can say about these plants, Pollan shows, for when we take them into our bodies and let them change our minds, we are engaging with nature in one of the most profound ways we can. Based in part on an essay published almost twenty-five years ago, this groundbreaking and singular consideration of psychoactive plants, and our attraction to them through time, holds up a mirror to our fundamental human needs and aspirations, the operations of our minds, and our entanglement with the natural world.

Author: Giorgio A. Ascoli
Publisher: MIT Press
ISBN: 0262329034
Category : Science
Languages : en
Pages : 247

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Book Description
An examination of the stunning beauty of the brain's cellular form, with many color illustrations, and a provocative claim about the mind-brain relationship. The human brain is often described as the most complex object in the universe. Tens of billions of nerve cells-tiny tree-like structures—make up a massive network with enormous computational power. In this book, Giorgio Ascoli reveals another aspect of the human brain: the stunning beauty of its cellular form. Doing so, he makes a provocative claim about the mind-brain relationship. If each nerve cell enlarged a thousandfold looks like a tree, then a small region of the nervous system at the same magnified scale resembles a gigantic, fantastic forest. This structural majesty—illustrated throughout the book with extraordinary color images—hides the secrets behind the genesis of our mental states. Ascoli proposes that some of the most intriguing mysteries of the mind can be solved using the basic architectural principles of the brain. After an overview of the scientific and philosophical foundations of his argument, Ascoli links mental states with patterns of electrical activity in nerve cells, presents an emerging minority opinion of how the brain learns from experience, and unveils a radically new hypothesis of the mechanism determining what is learned, what isn't, and why. Finally, considering these notions in the context of the cosmic diversity within and among brains, Ascoli offers a new perspective on the roots of individuality and humanity.

Author: Daniel Chamovitz
Publisher: Macmillan
ISBN: 0374288739
Category : Gardening
Languages : en
Pages : 192

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Book Description
Explores the secret lives of various plants, from the colors they see to whether or not they really like classical music to their ability to sense nearby danger.

Author: Eva M. Selhub, MD
Publisher: John Wiley & Sons
ISBN: 1118114493
Category : Health & Fitness
Languages : en
Pages : 258

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Book Description
How to safely de-tox from IT overload—with the healing effects of nature Scientific studies have shown that natural environments can have remarkable benefits for human health. Natural environments are more likely to promote positive emotions; and viewing and walking in nature have been associated with heightened physical and mental energy. Nature has also been found to have a positive impact on children who have been diagnosed with impulsivity, hyperactivity, and attention deficit disorder. A powerful wake-up call for our tech-immersed society, Your Brain on Nature examines the fascinating effects that exposure to nature can have on the brain. In Your Brain on Nature, physician Eva Selhub and naturopath Alan Logan examine not only the effects of nature on the brain—but the ubiquitous influence of everyday technology on the brain, and how IT overload and its many distractions may even be changing it. Offering an antidote for the technology-addicted, the book outlines emerging nature-based therapies including ecotherapy, as well as practical strategies for improving your (and your children's) cognitive functioning, mental health, and physical well-being through ecotherapeutic, nutritional, and behavioural means. Details the back to nature movement and the benefits of nature on the brain and body, from reducing the symptoms of ADHD to improving mood and physical energy Explains the effects of air quality, aromas, light and sound on the brain, including SAD and sleep loss A fascinating look at the effects that both nature and technology have on the brain's functioning and one's overall well-being, Your Brain on Nature is every tech-addict's guide to restoring health and balance in an increasingly IT-dependent world.

Author: Bret Stetka
Publisher: Timber Press
ISBN: 1604699884
Category : Science
Languages : en
Pages : 273

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Book Description
“A History of the Human Brain is a unique, enlightening, and provocative account of the most significant question we can ask about ourselves.” —Richard Wrangham, author of The Goodness Paradox Just 125,000 years ago, humanity was on a path to extinction, until a dramatic shift occurred. We used our mental abilities to navigate new terrain and changing climates. We hunted, foraged, tracked tides, shucked oysters—anything we could do to survive. Before long, our species had pulled itself back from the brink and was on more stable ground. What saved us? The human brain—and its evolutionary journey is unlike any other. In A History of the Human Brain, Bret Stetka takes us on this far-reaching journey, explaining exactly how our most mysterious organ developed. From the brain’s improbable, watery beginnings to the marvel that sits in the head of Home sapiens today, Stetka covers an astonishing progression, even tackling future brainy frontiers such as epigenetics and CRISPR. Clearly and expertly told, this intriguing account is the story of who we are. By examining the history of the brain, we can begin to piece together what it truly means to be human.

Author: Nicolette Perry
Publisher: The Experiment
ISBN: 1615194479
Category : Health & Fitness
Languages : en
Pages : 535

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Book Description
A practical, authoritative reference guide to more than 50 medicinal plants that offer natural, safe ways to optimize your brain health. Expert authors and mother-daughter team Elaine and Nicolette Perry have mastered an ever-growing body of scientific research (some of which they themselves pioneered) on how medicinal plants can help you sleep soundly, reduce stress, improve your memory, and simply feel better—in body and mind. Organized to easily steer you toward the best remedies for your individual needs, Your Brain on Plants presents: Calming Balms Cognition Boosters Blues Busters Sleep Promoters Pain Relievers Extra Energizers Mind-Altering Plants Plant Panaceas Within each of these chapters are detailed entries for the medicinal plants and herbs suited to the task, including what scientists know about them, their active ingredients, and guidelines regarding their safe use. Make-at-home recipes for foods, teas, tinctures, balms, and cordials demonstrate how simple it is to benefit from everything these plants have to offer. Plus, foods naturally containing ingredients proven to alleviate symptoms appear throughout the book, along with complementary wellness practices such as meditating (on a chamomile lawn), qi gong (in a wildflower meadow), and walking (in woodland). Praise for Your Brain on Plants “Two qualified nutritional specialists have assembled a clear, concise reference of well-known plants believed to benefit the brain . . . Fascinating facts and bits of folklore, controversies, and important herb-drug interactions add to this timely and intriguing text.” —Choice “This unique volume focusing on plants for mental health will be of interest to anyone considering herbal medicines.” —Booklist

Author: Eric Chivian
Publisher: Oxford University Press, USA
ISBN:
Category : Medical
Languages : en
Pages : 576

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Book Description
"Secretariat of the Convention on Biological Diversity; United Nations Development Programme; United Nations Environment Programme; IUCN--The World Conservation Union."

Author: Tony Wright
Publisher: Simon and Schuster
ISBN: 1620552523
Category : Body, Mind & Spirit
Languages : en
Pages : 304

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Book Description
An exploration of our fall from the pinnacle of human evolution 200,000 years ago and how we can begin our return • Explores recent neurological and psychological research on the brain and the role of plant biochemistry in human brain expansion • Explains how humanity’s prehistoric diet change led to a neurodegenerative condition characterized by aggression and a fearful perception of the world • Outlines a strategy of raw foods, tantric sexuality, shamanic practices, and entheogens to reverse our mental degeneration and restore our advanced abilities Over a period of a million years the human brain expanded at an increasingly rapid rate, and then, 200,000 years ago, the expansion abruptly stopped. Modern science has overlooked this in order to maintain that we are at the pinnacle of our evolution. However, the halt in brain expansion explains not only recently uncovered anomalies within the human brain but also the global traditions of an earthly paradise lost and of humanity’s degeneration from our original state of perpetual wonder and joy. Drawing on more than 20 years of research, authors Tony Wright and Graham Gynn explore how our modern brains are performing far below their potential and how we can unlock our higher abilities and return to the euphoria of Eden. They explain how for millions of years early forest-dwelling humans were primarily consuming the hormone-rich sex organs of plants--fruit--each containing a highly complex biochemical cocktail evolved to influence DNA transcription, rapid brain development, and elevated neural and pineal gland activity. Citing recent neurological and psychological studies, the authors explain how the loss of our symbiotic fruit-based diet led to a progressive neurodegenerative condition characterized by aggressive behaviors, a fearful perception of the world, and the suppression of higher artistic, mathematical, and spiritual abilities. The authors show how many shamanic and spiritual traditions were developed to counteract our decline. They outline a strategy of raw foods, tantric sexuality, shamanic practices, and entheogen use to reverse our degeneration, restore our connection with the plant world, and regain the bliss and peace of the brain of Eden.