Circadian preferences with emphasis on school-age children

Bakalářská práce: Cirkadiánní preference se zaměřením na děti žákovského věku Řešitel: Michaela Kasalová Vedoucí práce: PhDr. Denisa Janečková, Ph.D. Abstract: Chronobiology (name comes from a Greek word chronos = time) is a scientific field engaged in biological rhythms that have a specific cycle with a different length of period. The most important rhythms for a human body are circadian rhythms with a period approximately 24 hours. These rhythms influence individual timing of physiological, biochemical and psychological variables technically called chronotypes. Objectives of this bachelor's work are to map the chronotypes from a historical view and to outline individual types, their specifications, their biological principle and their connection with the circadian rhythms and a sleeping cycle. Differences between chronotypes are not only among individual persons but they are changing during specific ages, therefore I focus on school-age children. Today's school system forces pupils to a certain rhythm, not necessarily well functioning with their internal natural biorhythm, and can influence results as well as study options