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Have you ever wondered why the entire earth operates on a seven-day cycle? Have you thought about how even some of the smallest animals seem to follow a weekly schedule? This is NOT a coincidence. Our amazing God, having created this world in seven days, has implanted in living things a very tiny yet powerful gland that transfers information within our bodies—or even between species—by biochemical, neurological, or photonic means. The pineal gland is the rhythm-maker of our bodies and is a testament to the Sabbath created by God in Eden. This seal of our Creator is non-changing and anchored in time. As you explore the various aspects of these biological rhythms in humans, animals, birds, and even in insects and plants, you will see how there is a larger purpose to these circadian rhythms. The seven-day cycle is a gift from our Creator, our Redeemer of the world, to accept His invitation to come to Him and find the REST He desires for us in these troubled times. "Congratulations Dr Kenneth Greenaway for bringing together the evidences for the biological origins of Seven-day Rhythms in this succinct yet enlightening manuscript. As we grasp for a greater understanding of our origins may this work lead searchers for 'truth' to an eureka moment." ~ Dr. George S. Daniel M.Sc.,Ph.D.
Have you ever wondered why the earth operates on a 7-day cycle? The pineal gland is our body's rhythm-maker and a testament to the Sabbath. This book explores various aspects of this rhythm in nature and shows the importance of Sabbath REST.
Popular science at its most exciting: the breaking new world of chronobiology - understanding the rhythm of life in humans and all plants and animals. The entire natural world is full of rhythms. The early bird catches the worm -and migrates to an internal calendar. Dormice hibernate away the winter. Plants open and close their flowers at the same hour each day. Bees search out nectar-rich flowers day after day. There are cicadas that can breed for only two weeks every 17 years. And in humans: why are people who work anti-social shifts more illness prone and die younger? What is jet-lag and can anything help? Why do teenagers refuse to get up in the morning, and are the rest of us really 'larks' or 'owls'? Why are most people born (and die) between 3am-5am? And should patients be given medicines (and operations) at set times of day, because the body reacts so differently in the morning, evening and at night? The answers lie in our biological clocks the mechanisms which give order to all living things. They impose a structure that enables us to change our behaviour in relation to the time of day, month or year. They are reset at sunrise and sunset each day to link astronomical time with an organism's internal time.
Circadian Rhythms and the Human covers the basic principles behind the human circadian rhythms. This book is composed of 12 chapters that discuss the detection, analysis, and definition of rhythms, specifically exogenous and endogenous rhythms. This book also demonstrates the mechanism of metabolic and gastrointestinal rhythms. The opening chapters deal with the rhythms in living organism; establishing the endogeneity of rhythms; definition of nychthemeral rhythm; methods of measuring the frequency of rhythms; exogenous effects upon the temperature rhythm; interaction between exogenous and endogenous influences; and possible origins of renal rhythmicity. The succeeding chapters consider the effect of exercise at different times of day and the concept of sleep-wakefulness rhythm. The discussion then shifts to the effects of repeated time-zone transitions and the effects of time on drug administration. The closing chapters are devoted to the assessment of work performance during shift work. The book can provide useful information to doctors, students, researchers, and the general reader.
With the invitation to edit this volume, I wanted to take the opportunity to assemble reviews on different aspects of circadian clocks and rhythms. Although most c- tributions in this volume focus on mammalian circadian clocks, the historical int- duction and comparative clocks section illustrate the importance of various other organisms in deciphering the mechanisms and principles of circadian biology. Circadian rhythms have been studied for centuries, but only recently, a mole- lar understanding of this process has emerged. This has taken research on circadian clocks from mystic phenomenology to a mechanistic level; chains of molecular events can describe phenomena with remarkable accuracy. Nevertheless, current models of the functioning of circadian clocks are still rudimentary. This is not due to the faultiness of discovered mechanisms, but due to the lack of undiscovered processes involved in contributing to circadian rhythmicity. We know for example, that the general circadian mechanism is not regulated equally in all tissues of m- mals. Hence, a lot still needs to be discovered to get a full understanding of cir- dian rhythms at the systems level. In this respect, technology has advanced at high speed in the last years and provided us with data illustrating the sheer complexity of regulation of physiological processes in organisms. To handle this information, computer aided integration of the results is of utmost importance in order to d- cover novel concepts that ultimately need to be tested experimentally.
This book is an introduction to a basic property of life, one mostly unknown to science and the public until the latter half of the last century: Humans, plants, and animals have within their bodies a kind of clock that synchronizes much of what they do throughout their lives to the time ofday and the seasons, and in the case of the sea-dwelling organisms, the tides. This timepiece performs its service autonomously - it rules silently within us without us giving a thought to it.Three chapters are devoted to the human clock: its disruptive action in transmeridional travel and shift work, its oversight in most every aspect of our physiology, and how doctors being aware of its action can save lives. Other major subjects describe the role in piloting birds in homing andmigration, guiding the seasonal reproduction of plants and animals, and its influence on shore dwellers. The book closes with a description of the clockworks' escapement.
Every aspect of immune function and host defense is dependent upon a proper supply and balance of nutrients. Severe malnutrition can cause significant alteration in immune response, but even subclinical deficits may be associated with an impaired immune response, and an increased risk of infection. Infectious diseases have accounted for more off-duty days during major wars than combat wounds or nonbattle injuries. Combined stressors may reduce the normal ability of soldiers to resist pathogens, increase their susceptibility to biological warfare agents, and reduce the effectiveness of vaccines intended to protect them. There is also a concern with the inappropriate use of dietary supplements. This book, one of a series, examines the impact of various types of stressors and the role of specific dietary nutrients in maintaining immune function of military personnel in the field. It reviews the impact of compromised nutrition status on immune function; the interaction of health, exercise, and stress (both physical and psychological) in immune function; and the role of nutritional supplements and newer biotechnology methods reported to enhance immune function. The first part of the book contains the committee's workshop summary and evaluation of ongoing research by Army scientists on immune status in special forces troops, responses to the Army's questions, conclusions, and recommendations. The rest of the book contains papers contributed by workshop speakers, grouped under such broad topics as an introduction to what is known about immune function, the assessment of immune function, the effect of nutrition, and the relation between the many and varied stresses encountered by military personnel and their effect on health.
We live in a world dictated by the atomic clock. Yet our bodies, honed by over 3 billion years of evolution, beat to an older celestial rhythm. All living things contain molecular clocks that anticipate the daily pattern of dawn to dusk. Our daily circadian rhythms still dictate the pattern of our lives -- when we wake, when we sleep, when we feel at our best & at our worst. This book explains how our daily patterns of sleeping & waking, eating & drinking depend not just on how tired we feel, or how hungry or thirsty we are, but what our biological clocks are telling us. Drawing on research in many species of plants, animals, bacteria & algae, this book describes the world of circadian rhythms & makes this area of biological medicine accessible to all. Illus.
This book resolves to bridge the communication gap between research and clinical practice for circadian rhythm sleep-wake disorders. Beginning with a scientific background on biological timekeeping, opening chapters describe the crucial nature of maintaining delicate temporal organization of physiological and molecular events within the body. Following this are discussions on circadian physiology and methods of circadian assessments. Subsequent chapters then relay comprehensive information regarding the International Classification of Sleep Disorders-defined circadian rhythm sleep-wake disorders (CRSWDs), specifically discussing etiology and epidemiology, but focusing on evidence-based treatment data. Concluding discussions provide guidance for the application of light therapy and discuss future roles for optimized lighting environments. Nuanced and market-demanded, Circadian Rhythm Sleep-Wake Disorders: An Evidence-Based Guide for Clinicians and Investigators is an invaluable resource for Sleep Medicine clinicians, circadian researchers, and other interested parties.