“A fascinating look at how scientists are working to help doctors treat the aging process itself, helping us all to lead longer, healthier lives.” —Sanjay Gupta, MD Aging—not cancer, not heart disease—is the underlying cause of most human death and suffering. The same cascade of biological changes that renders us wrinkled and gray also opens the door to dementia and disease. We work furiously to conquer each individual disease, but we never think to ask: Is aging itself necessary? Nature tells us it is not: there are tortoises and salamanders who are spry into old age and whose risk of dying is the same no matter how old they are, a phenomenon known as “biological immortality.” In Ageless, Andrew Steelecharts the astounding progress science has made in recent years to secure the same for humans: to help us become old without getting frail, to live longer without ill health or disease.
A NEW YORK TIMES BESTSELLER “Brilliant and enthralling.” —The Wall Street Journal A paradigm-shifting book from an acclaimed Harvard Medical School scientist and one of Time’s most influential people. It’s a seemingly undeniable truth that aging is inevitable. But what if everything we’ve been taught to believe about aging is wrong? What if we could choose our lifespan? In this groundbreaking book, Dr. David Sinclair, leading world authority on genetics and longevity, reveals a bold new theory for why we age. As he writes: “Aging is a disease, and that disease is treatable.” This eye-opening and provocative work takes us to the frontlines of research that is pushing the boundaries on our perceived scientific limitations, revealing incredible breakthroughs—many from Dr. David Sinclair’s own lab at Harvard—that demonstrate how we can slow down, or even reverse, aging. The key is activating newly discovered vitality genes, the descendants of an ancient genetic survival circuit that is both the cause of aging and the key to reversing it. Recent experiments in genetic reprogramming suggest that in the near future we may not just be able to feel younger, but actually become younger. Through a page-turning narrative, Dr. Sinclair invites you into the process of scientific discovery and reveals the emerging technologies and simple lifestyle changes—such as intermittent fasting, cold exposure, exercising with the right intensity, and eating less meat—that have been shown to help us live younger and healthier for longer. At once a roadmap for taking charge of our own health destiny and a bold new vision for the future of humankind, Lifespan will forever change the way we think about why we age and what we can do about it.
MUST WE AGE? A long life in a healthy, vigorous, youthful body has always been one of humanity's greatest dreams. Recent progress in genetic manipulations and calorie-restricted diets in laboratory animals hold forth the promise that someday science will enable us to exert total control over our own biological aging. Nearly all scientists who study the biology of aging agree that we will someday be able to substantially slow down the aging process, extending our productive, youthful lives. Dr. Aubrey de Grey is perhaps the most bullish of all such researchers. As has been reported in media outlets ranging from 60 Minutes to The New York Times, Dr. de Grey believes that the key biomedical technology required to eliminate aging-derived debilitation and death entirely—technology that would not only slow but periodically reverse age-related physiological decay, leaving us biologically young into an indefinite future—is now within reach. In Ending Aging, Dr. de Grey and his research assistant Michael Rae describe the details of this biotechnology. They explain that the aging of the human body, just like the aging of man-made machines, results from an accumulation of various types of damage. As with man-made machines, this damage can periodically be repaired, leading to indefinite extension of the machine's fully functional lifetime, just as is routinely done with classic cars. We already know what types of damage accumulate in the human body, and we are moving rapidly toward the comprehensive development of technologies to remove that damage. By demystifying aging and its postponement for the nonspecialist reader, de Grey and Rae systematically dismantle the fatalist presumption that aging will forever defeat the efforts of medical science.
Stem Cells and Aging covers what is known about the effect of time and age on the basic units of life, which are the corresponding tissue-specific or adult stem cells. Even though the concept of stem cells was introduced nearly a century ago by Alexander Maximow, modern stem-cell research began in 1963 when James Till, Ernest McCullough and Lou Siminovitch established assays to detect hematopoietic stem cells. In fact, given the importance of the aging-associated diseases, scientists have developed a keen interest in understanding the aging process as they attempt to define the role of dysfunctional stem cells in the aging process. With an aging population worldwide, understanding these age-related stem cell changes at a basic biology level and at the level of their influences for regenerative medicine is of interest and importance. There is increasing evidence that the aging process can have much adverse effects on stem cells. In the modern era, one of the emerging fields in treating human diseases is stem cell research, as stem cells have the remarkable potential to treat a wide range of diseases. Nevertheless, understanding the molecular mechanism involved in aging and deterioration of stem cell function is crucial in developing effective new therapies for aging. - Serves as an ideal reference to guide investigators toward valuable answers to the problems of our aging population - Addresses the effect of time and age on human stem cells - Includes chapters from contributors exploring the biology of stem cell aging around the globe
Sooner or later, starting from forty, each man knows various disorders: general tiredness, overweight, cardiovascular troubles, sexual problems, memory losses, irritability, and tendency to depress. Often, they put these disturbances on stress and overwork. These disorders are actually due to a natural phenomenon easy to diagnose: the progressive reduction in the production of male hormones. It is the androgenic disease of andropause or andropause disease. To neglect this phenomenon leads to early aging and the development of psychological problems, which can affect personal life. However, for many years, the treatment of male aging exists. Thanks to suitable hormonal proportioning, it is possible to slow down aging and even to prevent it. But for lack of information or because they do not dare speak of their problems, men seldom resort to medicine. Georges Debled MD, Associate Professor of Urology, and specialist in andrology joins together in these bright and precise book results of most recent medical research and its forty years of experience on treatment and prevention of aging diseases. He presented this topic in Dallas in 1992. Unfortunately, generally, androgenic disease of andropause is only recognized, occasionally and tardily by doctors, at its end-stage called Low Testosterone in old age. But andropause disease has a commencement around forty, and sometimes before. That condition produces a pathologic fall in the production of dihydrotestosterone, the potent sexual hormone produced from the transformation of testosterone, and, consequently, sexual aging. With time, lack of androgens induces diabetes, high cholesterol, arterial rigidity and hypertension, cardiovascular diseases, osteoarthritis, hearing and eye troubles, nervous breakdown, Parkinson's, and Alzheimer's diseases. The Ageless Man explains the facts and principles of sexual aging, prostate problems, and conditions of aging since their early stages; and how to prevent them. Prevention of diseases of aging should be a priority for everyone who wants to live healthy longevity beyond eighty. The Ageless Man is already born. Do you want to be him?
"In the preface to this impressive and well-produced book, the editors state that their aim is not to describe a new surgical specialty, since most surgeons will soon need to be "geriatric surgeons," but to assemble a comprehensive account that will allow "all providers of healthcare to the elderly to understand the issues involved in choosing surgery as a treatment option for their patients." This is a useful book that deserves to do well. I hope that the editors and their publisher will have the stamina to make this the first of several editions, as it is clear that updated information about surgery in the elderly will be required to keep pace with this important field." NEJM Book Review
Finalist for the Pulitzer Prize in General Nonfiction A New York Times Bestseller Longlisted for the Andrew Carnegie Medal for Excellence in Nonfiction Winner of the WSU AOS Bonner Book Award Winner of the 2022 At Home With Growing Older Impact Award As revelatory as Atul Gawande's Being Mortal, physician and award-winning author Louise Aronson's Elderhood is an essential, empathetic look at a vital but often disparaged stage of life. For more than 5,000 years, "old" has been defined as beginning between the ages of 60 and 70. That means most people alive today will spend more years in elderhood than in childhood, and many will be elders for 40 years or more. Yet at the very moment that humans are living longer than ever before, we've made old age into a disease, a condition to be dreaded, denigrated, neglected, and denied. Reminiscent of Oliver Sacks, noted Harvard-trained geriatrician Louise Aronson uses stories from her quarter century of caring for patients, and draws from history, science, literature, popular culture, and her own life to weave a vision of old age that's neither nightmare nor utopian fantasy--a vision full of joy, wonder, frustration, outrage, and hope about aging, medicine, and humanity itself. Elderhood is for anyone who is, in the author's own words, "an aging, i.e., still-breathing human being."
Recent studies have indicated that epigenetic processes may play a major role in both cellular and organismal aging. These epigenetic processes include not only DNA methylation and histone modifications, but also extend to many other epigenetic mediators such as the polycomb group proteins, chromosomal position effects, and noncoding RNA. The topics of this book range from fundamental changes in DNA methylation in aging to the most recent research on intervention into epigenetic modifications to modulate the aging process. The major topics of epigenetics and aging covered in this book are: 1) DNA methylation and histone modifications in aging; 2) Other epigenetic processes and aging; 3) Impact of epigenetics on aging; 4) Epigenetics of age-related diseases; 5) Epigenetic interventions and aging: and 6) Future directions in epigenetic aging research. The most studied of epigenetic processes, DNA methylation, has been associated with cellular aging and aging of organisms for many years. It is now apparent that both global and gene-specific alterations occur not only in DNA methylation during aging, but also in several histone alterations. Many epigenetic alterations can have an impact on aging processes such as stem cell aging, control of telomerase, modifications of telomeres, and epigenetic drift can impact the aging process as evident in the recent studies of aging monozygotic twins. Numerous age-related diseases are affected by epigenetic mechanisms. For example, recent studies have shown that DNA methylation is altered in Alzheimer’s disease and autoimmunity. Other prevalent diseases that have been associated with age-related epigenetic changes include cancer and diabetes. Paternal age and epigenetic changes appear to have an effect on schizophrenia and epigenetic silencing has been associated with several of the progeroid syndromes of premature aging. Moreover, the impact of dietary or drug intervention into epigenetic processes as they affect normal aging or age-related diseases is becoming increasingly feasible.
