For some people, getting up in the morning seems to be a true challenge. Scientists from the Flinders University discovered why some people are unable to fall asleep at night, though easily have a good nap in the morning, reports The Daily Mail.
It turns out we should blame the internal body clock for running too slow.
15% of adolescents report having this problem (they leave for school not fully awaken). But sometimes this situation can last through the whole life of a person.
Professor Leon Lack believes that such people have the time schedule defined by the period bigger than 24 hours, so the cycle takes more time to fully complete.
Usually, the morning light alarms the internal clock automatically forcing the body to wake up. Various external factors such as light brightness and temperature can influence body clock natural response.
Furthermore, work in shifts and transcontinental flights can affect it .
Professor Luck plans to conduct a large-scale research to confirm his theory. The scientist claims he could fix the internal clock using light therapy, so people would be able to fall asleep in time and then wake up earlier.
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