|
Munich Chronotype Questionnaire
The Munich Chronotype Questionnaire (MCTQ) was created in 1976 by Till Roenneberg and Martha Merrow at Ludwig-Maximilians University (LMU) Munich. The MCTQ samples sleep and circadian rhythm data from more than 25,000 participants. Questions about work day and free day sleep schedules, work details, and lifestyle provide data to aid in the understanding of how biological clocks work in social life, such as Roenneberg's conclusions of social jetlag. The MCTQ categorizes each participant into one of seven chronotype groups, and utilizes data on participants’ midsleep phase and sleep debt Sleep debt or sleep deficit is the cumulative effect of not getting enough sleep. A large sleep debt may lead to mental or physical fatigue, and can adversely affect one's mood, energy and ability to think clearly. There are two kinds of sleep ... to survey what "type" of sleeper each person is. From these data, the MCTQ offers methods to make up for sleep debt (if any), and offers suggestio ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Till Roenneberg
Till Roenneberg (born 4 May 1953) is a professor of chronobiology at the Institute of Medical Psychology at Ludwig Maximilian University of Munich, Ludwig-Maximilian University (LMU) in Munich, Germany. Roenneberg, in collaboration with Martha Merrow, explores the impact of light on human circadian rhythms, focusing on aspects such as chronotypes and social jet lag in relation to health benefits. Life Roenneberg was born in Munich, Germany. He began working with Jürgen Aschoff at the age of 17. Roenneberg attended both the University College London and Ludwig Maximilian University of Munich where he began by studying physics. He switched to medicine in order to focus on the science of the human body, but ended up studying biology. As a postdoctoral fellow, he studied again under Jürgen Aschoff, studying annual rhythms in the body, then moved to the United States to study the cellular basis of biological clocks under Woody Hastings at Harvard University. In 1991, he began ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Martha Merrow
Martha Merrow (born 1957) is an American chronobiologist. She currently chairs the Institute of Medical Psychology at the Ludwig Maximilian University of Munich. Her career focuses primarily on investigating the molecular and genetic mechanisms of the circadian clock. Since joining the Ludwig Maximilian University in 1996, Merrow has investigated molecular and genetic mechanisms of the circadian clock as well as daily human behavior and medical psychology. Life Merrow was born in 1957 in Bloomfield, Connecticut and currently resides in Munich, Germany with her two daughters. Education Merrow received her bachelor's degree in Biology at Middlebury College in 1979. After working in a pediatric nephrology laboratory under Dr. Thomas Kennedy for five years, Merrow headed to Tufts University School of Medicine and earned her Ph.D. in Immunology in 1991. Later that year, she pursued her Post-Doctoral Fellowship in Chronobiology at Dartmouth Medical School, which she completed in 1996 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ludwig-Maximilians University
The Ludwig Maximilian University of Munich (simply University of Munich or LMU; german: Ludwig-Maximilians-Universität München) is a public research university in Munich, Germany. It is Germany's sixth-oldest university in continuous operation. Originally established in Ingolstadt in 1472 by Duke Ludwig IX of Bavaria-Landshut, the university was moved in 1800 to Landshut by King Maximilian I of Bavaria when the city was threatened by the French, before being relocated to its present-day location in Munich in 1826 by King Ludwig I of Bavaria. In 1802, the university was officially named Ludwig-Maximilians-Universität by King Maximilian I of Bavaria in honor of himself and Ludwig IX. LMU is currently the second-largest university in Germany in terms of student population; in the 2018/19 winter semester, the university had a total of 51,606 matriculated students. Of these, 9,424 were freshmen while international students totalled 8,875 or approximately 17% of the student popu ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sleep Debt
Sleep debt or sleep deficit is the cumulative effect of not getting enough sleep. A large sleep debt may lead to mental or physical fatigue, and can adversely affect one's mood, energy and ability to think clearly. There are two kinds of sleep debt: result of partial sleep deprivation, and of total sleep deprivation. Partial sleep deprivation occurs when a person or a lab animal sleeps too little for several days or weeks. Total sleep deprivation, on the other hand, occurs when the subject is being kept awake for at least 24 hours. There is debate in the scientific community over the specifics of sleep debt (see ), and it is not considered to be a disorder. Physiological effects of sleep debt Chronic sleep debt has a substantial health impact on the human body, specifically on metabolic and endocrine functions. A study published in ''The Lancet'' investigated the physiological effects of sleep debt by assessing the sympathovagal balance (an indicator of the sympathetic nerv ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
