Popular culture often equates testosterone with virility, strength, and the macho male physique. Viewed by some as an "antiaging tonic," testosterone's reputation and increased use by men of all ages in the United States have outpaced the scientific evidence about its potential benefits and risks. In particular there has been growing concern about an increase in the number of middle-aged and older men using testosterone and the lack of scientific data on the effect it may have on aging males. Studies of testosterone replacement therapy in older men have generally been of short duration, involving small numbers of participants and often lacking adequate controls. Testosterone and Aging weighs the options of future research directions, examines the risks and benefits of testosterone replacement therapy, assesses the potential public health impact of such therapy in the United States, and considers ethical issues related to the conduct of clinical trials. Testosterone therapy remains an attractive option to many men even as speculation abounds regarding its potential.

Written by internationally known European and American scientists, these volumes systematically present many topics in the elastin and elastases fields. Volume I explains elastin, its biosynthesis, physicochemical properties, and alteration in a variety of pathologies and with aging. Volume II describes elastases, their physiological and pathological roles and their control by natural and synthetic inhibitors. Filled with illustrations and figures, these volumes will benefit researchers, physicians, and industrial scientists.

The decade that has passed since publication of the second edition of this textbook has not only witnessed a tremendous increase in knowledge within the ? eld of and- logy, but also seen the ? eld itself achieve a newfound status within the medical p- fession. Knowledge and status have been of mutual bene? t to the ? eld and the growing critical mass of diagnostic and therapeutic possibilities have caused andrology to be recognized as a medical subspecialty in some countries such as Germany, Poland, and Estonia. The European Academy of Andrology (EAA) served as a pacemaker for this development and continues to strive for establishment of andrology as a clinical ? eld. Well-designed curricula and qualifying examinations have contributed to the of? cial recognition of andrology as a speciality. This recognition of the ? eld helps patients with andrological problems to ? nd the specialist they seek. This textbook summarizes the current state of knowledge in the ? eld of andrology. It is a source of knowledge to all those who are or want to become andrologists. In addition, as andrology is clearly an interdisciplinary ? eld, this book may serve as a compendium and source of reference for all those physicians and biologists active in neighboring areas, who want to obtain an overview of andrology and who require information on special problems. The extensive references are timely and up to date.

Endocrinology of Aging: Clinical Aspects in Diagrams and Images presents chapters in a way that allows the reader to incorporate concepts and complex facts in a visual way. As the global population becomes older, the need for a deeper understanding of geriatric pathology increases, and with it, there becomes a greater need to access educational resources on the endocrinology and metabolism of aging. According to the United Nations, the number of people aged 60 years or over in the world is projected to be 1.4 billion in 2030 and 2.1 billion in 2050, hence this is a timely resource. Divided according to specific endocrine and metabolic systems, providing evidence-based content Addresses physiological changes that alter the pathophysiology of the clinical picture Considers the patient transitioning from young adult to elderly, discussing endocrinological challenges to discern physiology from pathology Focuses on age as an essential factor for diagnostic and endocrine management

The author of "A Consumer's Dictionary of Cosmetic Ingredients" discusses the latest results in clinical testing of hormones, tackling the most challenging questions in a field that has captured the imagination of millions of aging baby boomers.

Despite the backlash against hormone replacement therapy, the depletion of natural hormones in the female body continues to be a problem for women at middle age and beyond. Remedying the problem has proved difficult for women and doctors who are unaware of, or reluctant to prescribe, bioidential hormones—those that match identically the hormones made naturally in the human body. Moods, Emotions, and Aging: Hormones and the Mind Body Connection explains the vital link for women between hormones, mood, and wellness. It outlines the dramatic hormonal shifts that women undergo in the years before menopause, and presents an approach to combining bioidentical hormone therapy with nutrients to achieve mood balance during midlife and beyond. Phyllis Bronson explains the differences between synthetic and bioidentical hormones, and offers vignettes of women who have used bioidentical hormones to help them deal with the changes that accompany natural hormone loss. This is a groundbreaking book for general readers written by a scientist who is able to take the mystery and the hype out of the hormone controversy. It is intended to empower women, along with their doctors, to make better and more informed choices about their health and well-being as they approach a time in their lives when things can seem like they are spinning out of control. The link between hormones, mood, emotions, and overall wellbeing is a powerful one, and when women are aware of it, they can take steps to bring themselves into better balance physically and emotionally. Here, Bronson shows them how.

It is a commonly held belief that athletes, particularly body builders, have greater requirements for dietary protein than sedentary individuals. However, the evidence in support of this contention is controversial. This book is the latest in a series of publications designed to inform both civilian and military scientists and personnel about issues related to nutrition and military service. Among the many other stressors they experience, soldiers face unique nutritional demands during combat. Of particular concern is the role that dietary protein might play in controlling muscle mass and strength, response to injury and infection, and cognitive performance. The first part of the book contains the committee's summary of the workshop, responses to the Army's questions, conclusions, and recommendations. The remainder of the book contains papers contributed by speakers at the workshop on such topics as, the effects of aging and hormones on regulation of muscle mass and function, alterations in protein metabolism due to the stress of injury or infection, the role of individual amino acids, the components of proteins, as neurotransmitters, hormones, and modulators of various physiological processes, and the efficacy and safety considerations associated with dietary supplements aimed at enhancing performance.