Psychologist Cindy Lustig said that older people have a habit of getting up early due to visual impairment.
The portal HuffPost spoke about unusual findings. According to the psychologist, due to poor vision, the intensity of light stimulation of the brain decreases, due to which the circadian rhythms associated with the change of day and night, including the cycle of sleep and wakefulness, are disrupted.
This hypothesis is supported by the statement of the director of the Center for the Study of Sleep at the University of New York, Sairam Parthasarati, that early awakenings are characteristic of pensioners with cataracts, a disease in which the lens of the eye becomes cloudy. The specialist suggested that the brain of such people believes that sunset comes earlier than in reality, and begins to produce the sleep hormone melatonin.
Because of this, they go to bed earlier and, accordingly, wake up earlier too. In addition, Parthasarathy added that early rises may be indicative of the natural aging of the brain and nervous system. Due to this, a person loses the ability to accurately determine the time of day and correctly regulate his biological clock.
In order to normalize them, doctors advise spending more time in the sun, turning on bright lights in the evening and walking in places with good lighting. Psychologist Lustig does not exclude the possibility that after eye surgery, early bedding and getting up in the morning will not only be reduced, but will disappear altogether, writes Lenta.ru .
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