Evolutionary Arguments On Aging Disease And Other Topicsn Aging

Autore: Giacinto Libertini
Editore: Azinet
ISBN: 0978870921
Grandezza: 44,78 MB
Formato: PDF, ePub
Vista: 6911
Download Read Online

Every character of a living being has its function: the teeth are there to chew, the lungs to breathe, the eyes to see, etc. But what is the function of aging, if there even is one?If it is true that the living being is modelled by natural selection, what are the evolutionary needs that bring about limited longevity or variable longevity according to the species? Why does a mouse live less than two years, a tortoise many tens of years and Pinus Aristata not seem to age at all? Are these differences casual or is evolution somehow at the origin of it all, as A. Weismann hypothesized back in the last century?The results are beyond all expectations: it is possible to provide an explanation for the "why of senescence in evolutionary terms.Another important topic is the meaning of disease phenomenon in the context of evolutionary theory. Illness is a set of phenomena that is perfectly anticipated and rationally classifiable by evolutionary theory.This book, printed in Italian in 1983, broached these and other questions with a rigorous evolutionary approach, using mathematical models in its arguments for the graphic expression and the confirmation of the models.

How Men Age

Autore: Richard G. Bribiescas
Editore: Princeton University Press
ISBN: 1400883261
Grandezza: 56,61 MB
Formato: PDF, Docs
Vista: 7367
Download Read Online

While the health of aging men has been a focus of biomedical research for years, evolutionary biology has not been part of the conversation—until now. How Men Age is the first book to explore how natural selection has shaped male aging, how evolutionary theory can inform our understanding of male health and well-being, and how older men may have contributed to the evolution of some of the very traits that make us human. In this informative and entertaining book, renowned biological anthropologist Richard Bribiescas looks at all aspects of male aging through an evolutionary lens. He describes how the challenges males faced in their evolutionary past influenced how they age today, and shows how this unique evolutionary history helps explain common aspects of male aging such as prostate disease, loss of muscle mass, changes in testosterone levels, increases in fat, erectile dysfunction, baldness, and shorter life spans than women. Bribiescas reveals how many of the physical and behavioral changes that we negatively associate with male aging may have actually facilitated the emergence of positive traits that have helped make humans so successful as a species, including parenting, long life spans, and high fertility. Popular science at its most compelling, How Men Age provides new perspectives on the aging process in men and how we became human, and also explores future challenges for human evolution—and the important role older men might play in them.

The Story Of The Human Body

Autore: Daniel Lieberman
Editore: Vintage
ISBN: 030774180X
Grandezza: 55,38 MB
Formato: PDF, Kindle
Vista: 2305
Download Read Online

In this book the author, a Harvard evolutionary biologist presents an account of how the human body has evolved over millions of years, examining how an increasing disparity between the needs of Stone Age bodies and the realities of the modern world are fueling a paradox of greater longevity and chronic disease. It illuminates the major transformations that contributed key adaptations to the body: the rise of bipedalism; the shift to a non-fruit-based diet; the advent of hunting and gathering, leading to our superlative endurance athleticism; the development of a very large brain; and the incipience of cultural proficiencies. The author also elucidates how cultural evolution differs from biological evolution, and how our bodies were further transformed during the Agricultural and Industrial Revolutions. While these ongoing changes have brought about many benefits, they have also created conditions to which our bodies are not entirely adapted, the author argues, resulting in the growing incidence of obesity and new but avoidable diseases, such as type 2 diabetes. The author proposes that many of these chronic illnesses persist and in some cases are intensifying because of 'dysevolution,' a pernicious dynamic whereby only the symptoms rather than the causes of these maladies are treated. And finally, he advocates the use of evolutionary information to help nudge, push, and sometimes even compel us to create a more salubrious environment. -- From publisher's web site.

An Introduction To Biological Aging Theory

Autore: Theodore Goldsmith
Editore: Azinet
ISBN: 0978870913
Grandezza: 67,75 MB
Formato: PDF, ePub, Mobi
Vista: 1538
Download Read Online

Why do we age? The answer to this question is critical to our ability to prevent and treat highly age-related diseases such as cancer and heart disease that now cause the deaths of most people in the developed world. This short book provides an overview of biological aging theories including history, current status, major scientific controversies, and implications for the future of medicine. Major topics include: human mortality as a function of age, aging mechanisms and processes, the programmed vs. non-programmed aging controversy, empirical evidence on aging, and the feasibility of anti-aging and regenerative medicine. Evolution theory is essential to aging theories. Theorists have been struggling for 150 years to explain how aging, deterioration, and consequent death fit with Darwin's survival of the fittest concept. This book explains how continuing genetics discoveries have produced changes in the way we think about evolution that in turn lead to new thinking about the nature of aging.

Genetics And Evolution Of Aging

Autore: Michael R. Rose
Editore: Springer Science & Business Media
ISBN: 9401716714
Grandezza: 70,72 MB
Formato: PDF, ePub, Mobi
Vista: 5240
Download Read Online

Aging is one of those subjects that many biologists feel is largely unknown. Therefore, they often feel comfortable offering extremely facile generalizations that are either unsupported or directly refuted in the experimental literature. Despite this unfortunate precedent, aging is a very broad phenomenon that calls out for integration beyond the mere collecting together of results from disparate laboratory organisms. With this in mind, Part One offers several different synthetic perspectives. The editors, Rose and Finch, provide a verbal synthesis of the field that deliberately attempts to look at aging from both sides, the evolutionary and the molecular. The articles by Charlesworth and Clark both provide population genetic perspectives on aging, the former more mathematical, the latter more experimental. Bell takes a completely different approach, arguing that aging may not be the result of evolutionary forces. Bell's model instead proposes that aging could arise from the progressive deterioration of chronic host pathogen interactions. This is the first detailed publication of this model. It marks something of a return to the type of aging theories that predominated in the 1950's and 1960's, theories like the somatic mutation and error catastrophe theories. We hope that the reader will be interested by the contrast in views between the articles based on evolutionary theory and that of Bell. MR. Rose and C. E. Finch (eds. ), Genetics and Evolution of Aging, 5-12, 1994. © 1994 Kluwer Academic Publishers. The J aniform genetics of aging 2 Michael R. Rosel & Caleb E.

The Long Tomorrow

Autore: Michael R. Rose
Editore: Oxford University Press
ISBN: 9780198039860
Grandezza: 33,14 MB
Formato: PDF
Vista: 9946
Download Read Online

The conquest of aging is now within our grasp. It hasn't arrived yet, writes Michael R. Rose, but a scientific juggernaut has started rolling and is picking up speed. A long tomorrow is coming. In The Long Tomorrow, Rose offers us a delightfully written account of the modern science of aging, spiced with intriguing stories of his own career and leavened with the author's engaging sense of humor and rare ability to make contemporary research understandable to nonscientists. The book ranges from Rose's first experiments while a graduate student--counting a million fruit fly eggs, which took 3,000 hours over the course of a year--to some of his key scientific discoveries. We see how some of his earliest experiments helped demonstrate that "the force of natural selection" was key to understanding the aging process--a major breakthrough. Rose describes how he created the well-known Methuselah Flies, fruit flies that live far longer than average. Equally important, Rose surveys the entire field, offering colorful portraits of many leading scientists and shedding light on research findings from around the world. We learn that rodents given fifteen to forty percent fewer calories live about that much longer, and that volunteers in Biosphere II, who lived on reduced caloric intake for two years, all had improved vital signs. Perhaps most interesting, we discover that aging hits a plateau and stops. Popular accounts of Rose's work have appeared in The New Yorker, Time magazine, and Scientific American, but The Long Tomorrow is the first full account of this exciting new science written for the general reader. "Among his peers, Rose is considered a brilliantly innovative scientist, who has almost single-handedly brought the evolutionary theory of aging from an abstract notion to one of the most exciting topics in science."--Malcolm Gladwell, The New Yorker

Religion In Human Evolution

Autore: Robert N. Bellah
Editore: Harvard University Press
ISBN: 0674063090
Grandezza: 18,56 MB
Formato: PDF, ePub
Vista: 8927
Download Read Online

This ambitious book probes our biological past to discover the kinds of lives that human beings have imagined were worth living. Bellah’s theory goes deep into cultural and genetic evolution to identify a range of capacities (communal dancing, storytelling, theorizing) whose emergence made religious development possible in the first millennium BCE.

Current Topics In Menopause

Autore: Volodymyr Dvornyk
Editore: Bentham Science Publishers
ISBN: 1608054535
Grandezza: 49,90 MB
Formato: PDF, ePub
Vista: 7596
Download Read Online

Menopause is a significant event in a woman’s life as is generally considered as an indicator for senescence in women. Evidence suggests that menopause results in many psychological and postmenopausal health problems, such as anxiety, osteoporosis, cardiovascular disease, metabolic disorder and others. Menopausal symptoms and associated disorders are of great importance for public health as they influence the quality of life of affected individuals. Therefore proper management of menopause will definitely contribute to healthy aging and the overall well-being of women. This e-book reviews recent progress in the research and management of menopause and associated health problems. It provides comprehensive coverage of both clinical aspects and basic research of menopause. Topics covered in this e-book include research findings about risk factors for complex medical conditions associated with menopause along with the treatment options for these conditions, with particular emphasis on hormone replacement therapy (HRT). These conditions include osteoporosis, dementia, cardiovascular diseases, obesity and diabetes mellitus. Subsequent chapters detail on common oncological malignancies post menopause. The e-book concludes with a review of HRT treatment including its advantages and disadvantages followed by a review on risk factors, causes and complications of premature menopause occurring in women before an age of 40 years. This e-book is a valuable guide for medical researchers and gynecological professionals with a focus on the pathophysiology and treatment of this medical condition.

Human Biology

Autore: Raymond Pearl
Grandezza: 19,70 MB
Formato: PDF
Vista: 5553
Download Read Online

Includes section "Recent literature useful in the study of human biology."

Stone Age Present

Autore: William Allman
Editore: Simon and Schuster
ISBN: 0684804557
Grandezza: 57,50 MB
Formato: PDF, Mobi
Vista: 210
Download Read Online

The first popular-science book to move beyond the "nature versus nurture" debate and illuminate how the legacy of our ancient ancestors profoundly influences our contemporary behavior and moral values. In this fascinating synthesis of biology, anthropology, psychology, and other disciplines, William Allman traces the development of humankind and human communities.