Social schedules should follow the natural daylight patterns
(WorldNews Finland)

Scientists conducted `reality mining` of anonymous mobile phone records from about one million people. Despite artificial lightning and social conventions, the dynamics of daylight still influence the daily activities of people living in modern, urban environments, according to new research published in PLOS Computational Biology. Like many other organisms, humans have an internal biological clock that helps them adapt to different environmental cues, such as light and darkness. In modern cities, people also must adhere to a social clock of daily...