The Rhythms Of Life
The Rhythms Of Life

Author: Leon Kreitzman

Publisher: Profile Books

Published: 2011-09-30

Total Pages: 288

ISBN-13: 1847653723

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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.

Biological Clocks, Rhythms, and Oscillations
Biological Clocks, Rhythms, and Oscillations

Author: Daniel B. Forger

Publisher: MIT Press

Published: 2024-08-06

Total Pages: 369

ISBN-13: 0262552817

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An introduction to the mathematical, computational, and analytical techniques used for modeling biological rhythms, presenting tools from many disciplines and example applications. All areas of biology and medicine contain rhythms, and these behaviors are best understood through mathematical tools and techniques. This book offers a survey of mathematical, computational, and analytical techniques used for modeling biological rhythms, gathering these methods for the first time in one volume. Drawing on material from such disciplines as mathematical biology, nonlinear dynamics, physics, statistics, and engineering, it presents practical advice and techniques for studying biological rhythms, with a common language. The chapters proceed with increasing mathematical abstraction. Part I, on models, highlights the implicit assumptions and common pitfalls of modeling, and is accessible to readers with basic knowledge of differential equations and linear algebra. Part II, on behaviors, focuses on simpler models, describing common properties of biological rhythms that range from the firing properties of squid giant axon to human circadian rhythms. Part III, on mathematical techniques, guides readers who have specific models or goals in mind. Sections on “frontiers” present the latest research; “theory” sections present interesting mathematical results using more accessible approaches than can be found elsewhere. Each chapter offers exercises. Commented MATLAB code is provided to help readers get practical experience. The book, by an expert in the field, can be used as a textbook for undergraduate courses in mathematical biology or graduate courses in modeling biological rhythms and as a reference for researchers.

The Male Biological Clock
The Male Biological Clock

Author: Harry Fisch

Publisher: Simon and Schuster

Published: 2013-09-24

Total Pages: 153

ISBN-13: 1476740828

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Dr. Harry Fisch, a leading expert in male infertility, shares groundbreaking information about the bodily and behavioral changes that happen over the course of a man’s lifetime. Busting the myth that men don’t have biological clocks, Dr. Henry Fisch emphasizes that even young men can have testosterone levels as low as those of much older men, leading to infertility, sexual problems, and other serious health issues. Every couple should know all the risks and issues facing men, because these affect two of the most important things in their life: their ability to have children and their capacity to have good sex. The Male Biological Clock is a must read for every man and every couple who is struggling to have children or improve their sex life. Many of Dr. Harry Fisch's findings are startling—beginning with the fact that infertility is not mostly a women's problem—and he offers many helpful suggestions for how to deal with declining testosterone, changing sexual needs, and the fertility industry. The Male Biological Clock tells you what you need to know and how you can achieve optimal fertility and sexuality.

Biological Clock in Fish
Biological Clock in Fish

Author: Ewa Kulczykowska

Publisher: CRC Press

Published: 2010-05-27

Total Pages: 278

ISBN-13: 1439845115

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Each organism has its own internal biological clock, which is reset by environmental cues (Zeitgebers), thus keeping it synchronized with the external environment. It is a chemically based oscillating system within cells, relying on molecular feedback loops. Circadian biological clocks exist in most organisms.What is so special about the clock in f

Reset Your Biological Clock
Reset Your Biological Clock

Author: Al Sears

Publisher:

Published: 2010-12-15

Total Pages: 97

ISBN-13: 9780983172215

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Dr. Sears discusses new research involving telomeres (longer telomeres means a longer life span) and a genetic switch that activates telomerase, as well as nutrition and supplements to minimize damage by free radicals, and his PACE exercise program for fitness.

Labor of Love
Labor of Love

Author: Moira Weigel

Publisher: Farrar, Strauss & Giroux-3pl

Published: 2017-08-22

Total Pages: 321

ISBN-13: 0374536953

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A brilliant and surprising investigation into why we date the way we do

Biological Timekeeping: Clocks, Rhythms and Behaviour
Biological Timekeeping: Clocks, Rhythms and Behaviour

Author: Vinod Kumar

Publisher: Springer

Published: 2017-02-15

Total Pages: 663

ISBN-13: 8132236882

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This book is a concise, comprehensive and up-to-date account of fundamental concepts and potential applications of biological timekeeping mechanisms in animals and humans. It also discusses significant aspects of the organization and importance of timekeeping mechanisms in both groups. Divided into seven sections, it addresses important aspects including fundamental concepts; animal and human clocks; clock interactions; clocks and metabolism and immune functions; pineal, melatonin and timekeeping; and clocks, photoperiodism and seasonal behaviours. The book also focuses on biological clock applications in a 24x7 human society, particularly in connection with life-style associated disorders like obesity and diabetes. It is a valuable resource for advanced undergraduates, researchers and professionals engaged in the study of the science of biological timekeeping.

Biological Clocks
Biological Clocks

Author: Susan Binkley

Publisher: CRC Press

Published: 2020-08-26

Total Pages: 240

ISBN-13: 100015968X

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Biological Clocks introduces the subject of human chronobiology. It describes biological clocks; why we have clocks; how biological clocks relate to sleep disorders, depression, and jet lag; and how the reader can measure his/her own rhythms.

Rewinding Your Biological Clock
Rewinding Your Biological Clock

Author: Judith Sachs

Publisher:

Published: 2016-01-26

Total Pages: 0

ISBN-13: 9781504028929

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In 1996, Dr. Richard Paulson assisted a 63-year-old woman to conceive using in vitro fertilization with a donor egg, and she became the oldest woman in the world to give birth. This incredible example of how assisted reproductive technologies, or ART, can change the course of nature raises tough biological, emotional, and ethical issues. Rewinding Your Biological Clock is a unique exploration of each of these issues, especially the "how-to" of peri- and post-menopausal pregnancy. Written by a leading fertility specialist and a health educator, this original and daring book rethinks society's most fundamental beliefs about motherhood, aging, and life itself."