how many hours of sleep do japanese sleep?
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The findings show that Japanese men and women sleep an average of six hours and 35 minutes each night, which is about 45 precious snoozing minutes less than the study average. Compared to Finland, which was found to have the most hours of sleep per night, Japan basically lost nearly an hour every night.
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According to the National Sleep Foundation, children aged 3-5 need about 11 to 13 hours of sleep every night. In addition, many preschoolers nap during the day, with naps ranging between one and two hours per day. Children often stop napping after five years of age.
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While sleep requirements vary slightly from person to person, most healthy adults need between 7 to 9 hours of sleep per night to function at their best.
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Dement's study and future research into sleep latency found that, on average, it takes between 10 and 20 minutes to fall asleep.
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On average you'll go through 3-5 REM cycles per night, with each episode getting longer as the night progresses. The final one may last roughly an hour. For healthy adults, spending 20-25% of your time asleep in the REM stage is a good goal. If you get 7-8 hours of sleep, around 90 minutes of that should be REM.
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The “right” amount of sleep proves somewhat individual as some people will feel great on seven hours and others may need a little longer. However, in most studies and for most experts, over nine hours is considered an excessive or long amount of sleep for adults.
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Adolescents are notorious for not getting enough sleep. The average amount of sleep that teenagers get is between 7 and 7 ¼ hours. However, they need between 9 and 9 ½ hours (studies show that most teenagers need exactly 9 ¼ hours of sleep).
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Adult dogs generally sleep 12 – 14 hours/day, whereas puppies and older dogs require more, ranging from 15 – 18 hours/day. Unlike humans who generally receive eight hours of consecutive sleep, dogs sleep on and off throughout the day. In fact, 30% of a dog's day is resting, while 20% is consumed with activity.
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Most people need at least seven to eight hours of sleep at night for the body and brain to function normally. So, if you stay up all night, missing out on the recommended amount of sleep, your brain will be equally as weary—rendering a sharp decrease in performance for specific learning and memory tasks.
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Normal sleep for adults means that you fall asleep within 10 to 20 minutes and get about 7–8 hours a night. Children and adolescents need about 10 hours of sleep, and babies, toddlers, and preschool-aged children need even more. The time it takes you to fall asleep is known as sleep latency.
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The average amount of sleep that teenagers get is between 7 and 7 ¼ hours. However, they need between 9 and 9 ½ hours (studies show that most teenagers need exactly 9 ¼ hours of sleep).
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While there is no hard and fast rule, the general guide is toddlers need around 12 hours of sleep a night; children aged three to six – 10-12 hours; seven-12 years olds – 10-11 hours; and teenagers – around eight to nine hours.
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People with hypersomnia might require as many as 10 to 12 hours of sleep per night to feel their best. Since day-to-day life might include responsibilities that don't allow for this much rest, long sleepers may feel excessively tired during the day and catch up on off days, sleeping as much as 15 hours at a time.
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It takes, on average, about 90 minutes to go through each cycle. If you can complete five cycles a night, you'd get 7.5 hours of sleep a night.
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According to the National Institutes of Health, the average adult sleeps less than seven hours per night. In today's fast-paced society, six or seven hours of sleep may sound pretty good. In reality, though, it's a recipe for chronic sleep deprivation.
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The average healthy adult gets roughly 1 to 2 hours of deep sleep per 8 hours of nightly sleep.
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In fact, that the amount of time that it takes for your body to adjust is approximately 24 hours per time zone. So, if you're traveling to Japan from San Francisco, expect to have that hangover feeling for at least seven days into your trip, since you'll be crossing seven time zones.