作者: Richard Kittler , Miroslav Kocifaj , Stanislav Darula
DOI: 10.1007/978-1-4419-8816-4_6
关键词:
摘要: The natural human biorhythm was mainly influenced by periodic changes of daytime activities and nighttime rest. In the original evolution environment in equatorial region, regular daily yearly sunrise sunset considerably also vital behavior body for permanent 12 h same period. Migration to northern southern territories during prehistoric time brought experience seasonal daylight changes. These were linked with interval varying cycles.