In the modern era, for many people, the end of the day is not considered rest, but merely a short break. Even if the work pace slows down, a feeling of fatigue remains in the body in the morning due to incomplete recovery during the night.
Medianews.az reports citing AZERTAC that studies have found the problem is not only related to the duration of sleep, but also to its quality and timing. Scientists have determined that even if the total sleep time is normal, the phase important for the recovery of the body decreases. This negatively affects cell renewal and metabolic recovery processes.
According to specialists, one of the main reasons is constant digital stimulation and stress. Orfeu Buxton, a sleep researcher at Pennsylvania State University in the United States, stated that even if a person thinks they have completed their day, the brain may not yet receive the signal to "safely stop." This process is related to the reduction of cortisol hormone, activation of the parasympathetic nervous system, and the transition of the circadian rhythm to the night mode.
Anna Lembke, a psychiatrist at Stanford University, noted that due to constant digital impacts, the brain continues mental tension during sleep.
A study published last year in the journal "Frontiers in Psychiatry" also confirms these views. According to the research, as smartphone addiction increases, sleep quality decreases and psychological stress rises. The problem is not only going to bed late but also the incomplete activation of the body's recovery mechanisms.
Research shows that when the human body does not clearly feel the "end of the day," the stress system remains active. At this time, cortisol levels slowly decrease throughout the night, heart rate variability is low, and as a result, deep sleep phases weaken. Additionally, the condition called "social jetlag" (different sleep patterns on weekdays and weekends) causes disruption of the biological clock.
According to scientists, to improve sleep quality, attention should be paid not only to sleep duration but also to routine and psychological boundaries. Reducing bright light in the evening hours, distancing from electronic devices, maintaining regular sleep hours, and forming stable habits that signal the end of the day can help the body recover more effectively.