This can lead to symptoms ofsleep deprivation, including drowsiness, forgetfulness, and moodiness.
The definition of sleep deprivation can vary to some degree by age and other factors.
By age 60, the risk increased to 32% and, by age 70, to 40%.

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People with SSS perform well at work or school even though they have short periods of sleep.
They dont feel the need to take naps or catch up on sleep on weekends.
The cause of SSS is not well understood, but genetics is thought to play a major role.
These receptors regulate, among other things, body functions during thecircadian (sleep-wake) cycle.
The circadian rhythm is largely synchronized to day and night.
However, it may be of concern ifdisrupted sleepis ongoing and affecting your ability to function.
It can also be due to poor sleep hygiene, including the consumption of caffeine or alcohol before bedtime.
SSS is believed to be associated with a specific gene mutation.
2019;103(6):1044-1055.e7.
2022 Oct 18;19(10):e1004109.
doi:10.1371/journal.pmed.1004109
National Institutes of Health.Gene identified in people who need little sleep.
National Health Service (UK).Insomnia.
Johns Hopkins Medicine.Obstructive sleep apnea.
National Institute of Neurological Disorders and Stroke.Restless legs syndrome.
Michigan Medicine.Why sleep disorders cause heartburn (and vice versa).
National Center for Health Statistics.Sleep difficulties in adults: United States, 2020.
American Academy of Sleep Medicine.Healthy sleep habits.