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What is Circadian Rhythm

Chapter 2
Handbook of Research on Healthcare Administration and Management
A description of physiological and behavioral patterns altered within 24 hours.
Published in Chapter:
GIS, Spatial Analysis, and Modeling: The Case of Breast Cancer Incidence in the US
Khadijeh Rouzbehani (University of Tehran, Iran), Ghazaleh Sajjadi (Azad University, Iran), and Mohamad Rahim Hatami (Iran Medical School of Science, Iran)
Copyright: © 2017 |Pages: 14
DOI: 10.4018/978-1-5225-0920-2.ch002
Abstract
Breast cancer is a major health issue in all countries affecting thousands of women. Its causes are unknown and the national and international strategies to reduce its morbidity and mortality levels are based on early detection of cancer through screening and treatment according to clinical guidelines. Thus, knowledge of which women are at risk and why they are at risk is therefore essential component of disease prevention and screening. In 2015, an estimated 231,840 new cases of invasive breast cancer are expected to be diagnosed in women in the United States, along with 60,290 new cases of non-invasive (in situ) breast cancer. The purpose of this study is to provide a more detailed analysis of the breast cancer distribution in the United States by comparing the spatial distribution of breast cancer cases against physical environmental factors using Geographic Information System (GIS). Further, it gives background information to the GIS and its applications in health-related research.
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Chapter 8
Conflict Resolution of Mind and Body Using Ayurveda and Yoga
A rhythmic approximately twenty-four hour oscillation of bodily processes like the sleep-wake cycle that is repeated each day. These rhythms can be entrained or adjusted by factors like the light/dark cycle, eating, smell, touch, and sound.
Published in Chapter: Conflict Resolution of Mind and Body Using Ayurveda and Yoga; From: Natural Healing as Conflict Resolution
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Chapter 300
Geographic Information System (GIS) Modeling Analysis and the Effects of Spatial Distribution and Environmental Factors on Breast Cancer Incidence
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Chapter 22
Geographic Information System (GIS) Modeling Analysis and the Effects of Spatial Distribution and Environmental Factors on Breast Cancer Incidence
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Chapter 3
Effects of COVID-19 on OCD Severity and Coping Strategies
An internal process that regulates sleep-wake cycles. It repeats every 24 hours.
Published in Chapter: Effects of COVID-19 on OCD Severity and Coping Strategies; From: The Impact of the COVID-19 Pandemic on Child, Adolescent, and Adult Development
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Chapter 11
The Positive Effects of Music Therapy on Stress
The natural cycle of physical, mental, and behavior changes that the body goes through in a 24-hour cycle.
Published in Chapter: The Positive Effects of Music Therapy on Stress; From: Exploring the Benefit of Creative Arts Therapies for Children, Adolescents, and Adults
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Chapter 8
Professional Styles and Some Psychophysiological Risk Factors of Work Engagement of Programmers
In humans, it provides the optimal level and duration of sleep and rest during the dark (night) period, so that they are ready to optimally perform all functions during the light (day) period. There are patterns of brain wave activity in the body that are influenced by secreted hormones, cell regeneration, and other biological activities related to the 24-hour time cycle. Circadian rhythm is therefore an important physiological process in all living beings, because it determines the sleep pattern, or the time when one is asleep and awake, every 24 hours. The operation of a normal circadian clock determines the 24-hour cycle of light and darkness (day and night).
Published in Chapter: Professional Styles and Some Psychophysiological Risk Factors of Work Engagement of Programmers; From: Handbook of Research on Key Dimensions of Occupational Safety and Health Protection Management
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