FLASH
Shkruar nga Pamfleti
As the holidays approach and the pace of daily life becomes increasingly intense, fatigue sets in and the question returns: how many hours of sleep does an adult really need to be productive and truly rested? Most guidelines place the ideal range at 7 to 9 hours a night, linking it to good health and emotional stability, but the picture is more complex.
Research has shown that systematically sleeping less than 7 hours increases the risk of obesity, hypertension, cardiovascular problems, and a number of other health problems.
However, Dr. Tony Cunningham, a clinical psychologist and director of the Center for Sleep and Cognition in Boston, emphasizes that it's not enough to simply "catch" an hourly number. For some organizations, 6 hours may be enough, while others need up to 10 hours to function efficiently.
The quality of sleep, he says, is essential, not just its duration. Cunningham explains that two basic biological mechanisms determine this quality: sleep pressure, which increases while we are awake and decreases when we are asleep, and the circadian rhythm, the internal clock that regulates the phases of wakefulness and fatigue during the day. When these two mechanisms are "in sync," sleep is deep, refreshing, and healthy. But when the clock is disrupted, their balance is disrupted.
This phenomenon is especially noticeable during the holiday season, when schedules change, nighttime outings increase, and many activities are postponed until later. Cunningham considers the time of morning awakening to be crucial, emphasizing that it is preferable to wake up consistently at the same time every day, rather than trying to go to bed at the same time every night. The body, he notes, has difficulty falling asleep without sufficient sleep pressure, even if there is a feeling of fatigue.
For those who want to find out how much sleep their body really needs, the expert suggests a practical "experiment," if their obligations allow. The basic idea is to maintain a consistent sleep schedule that is consistent with the body's natural sense of "night," and then sleep without an alarm clock for several days in a row.
Ideally, it is recommended to block out as many external stimuli as possible: cover the clocks, darken the room, and avoid bright light, so that the body can wake up on its own. The first few nights we are likely to sleep more due to the accumulated lack of sleep, but then the body tends to stabilize the time of awakening. When this is repeated for four or five days, we can now have a much more accurate picture of our natural sleep rhythm.
In a time when pace is accelerating and obligations are multiplying, recording this personal “rhythm” can be essential for maintaining energy and health. As Cunningham points out, there is no “magic” sleep duration for everyone; however, there is a consistent frame of reference and a biology that, when listened to, can tell us very clearly what we need.
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