Today has min at my location just 483 of sunrise and lasted until sunset. That is 512 minutes less than the summer solstice.
come in biology classes, students with the foreign word Chronobiology first time in grade 8 and again later in the Upper School in touch about this and this among other things, that the circadian rhythm of human is more in a 25-hour for a 24-hour rhythm-oriented and is mediated by specific photoreceptors in the eyes.
American researchers now have a measurable correlation between the daily activity shown later in life and the particular day length at birth of a (mouse) found child. Which can either have (without Weckerjoch, pure of course) start in the early hours of the day - this is called the so-called larks. Or, move more to the very late hours of the day - the analogy would be the Owls.
For the study, mice were babies from birth to weaning from the mother in artificial winter (8 h light) or summer (16 h light) phases wound. After this time all mice were exposed to continuous darkness and analyzed the activity to behavior.
Conclusion: The light conditions during the period from birth to weaning, the animals were marked critical. The "Winter mice" showed a opposite to the "Summer mice" significantly extended activity rhythm. Another striking feature was a highly fluctuating pattern of activity of the "Winter mice" in times of short days: You are a human winter depression-like behavior have shown. out
Well, owls, larks here, I can get up early and go to sleep early. But the tendency to depression and schizophrenia ... So I have to discuss with my ego again.
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