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Scientists reveal how to find your ideal sleep duration, challenging the 8-hour rule
🇹🇷 Turkey /Health & Science

Scientists reveal how to find your ideal sleep duration, challenging the 8-hour rule

From Cumhuriyet · () Turkish

Translated from Turkish, summarized and contextualized by DistantNews.

At a glance

News Named sources Context piece
  • Scientists suggest the common "8 hours of sleep" rule is not universally applicable.
  • Harvard experts propose a method to calculate an individual's ideal sleep duration based on genetics and biological rhythms.
  • The method involves observing sleep patterns without alarms in a controlled environment to understand personal sleep needs.

The long-held belief that everyone needs exactly eight hours of sleep per night is being challenged by scientific research. Experts from Harvard Medical School suggest that the ideal sleep duration varies significantly from person to person, influenced by genetics.

Sleep pressure and circadian rhythm.

— Dr. Tony CunninghamHe identified the two primary physiological mechanisms that determine an individual's sleep needs.

Dr. Tony Cunningham, Director of the Boston Sleep and Cognition Center and a faculty member at Harvard Medical School, emphasizes that sleep quality is more critical than quantity. He explained that two key physiological mechanisms, "sleep pressure" and "circadian rhythm," regulate our sleep needs. Sleep pressure builds the longer we are awake, while the circadian rhythm, the body's internal clock, signals periods of wakefulness and sleep throughout the day.

Waking up at the same time each day is much more effective in maintaining metabolic balance than going to bed at the same time.

— ExpertsThe article highlights the importance of a consistent wake-up time for metabolic health.

According to Dr. Cunningham, these two mechanisms must work in harmony for high-quality sleep. He advises going to bed only when feeling sleepy, not just tired, and stresses that waking up at the same time each day is more crucial for metabolic balance than maintaining a consistent bedtime. Staying awake in bed for more than 31 minutes can disrupt sleep pressure and lead to chronic insomnia.

Staying awake in bed for more than 31 minutes triggers chronic insomnia by disrupting sleep pressure in the brain.

— ExpertsThis highlights a common mistake that can negatively impact sleep patterns.

Challenging the popular notion that "everyone should sleep 8 hours," Dr. Cunningham stated that this is merely an average. Genetic makeup plays a significant role, with some individuals functioning optimally on as little as five to six hours, while others require ten to eleven hours. While insufficient sleep is linked to health risks like obesity and cardiovascular disease, forcing oneself to sleep longer than biologically necessary can also reduce sleep quality. To determine one's unique sleep needs, experts recommend a "natural experiment" without external time cues.

The public perception of 'Everyone should sleep 8 hours' is scientifically just an average.

— Dr. Tony CunninghamHe debunked the one-size-fits-all approach to sleep duration.
DistantNews Editorial

Originally published by Cumhuriyet in Turkish. Translated, summarized, and contextualized by our editorial team with added local perspective. Read our editorial standards.

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