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8-10 hours.
It is best to sleep between 00:00 and 01:00.
Teenagers between the ages of 13 and 20. Adolescents in this age group are usually accustomed to getting 8 hours of sleep a day. At 3 o'clock in the night, they slept soundly.
If you want them to sleep better, you should be careful that you can only sleep late on weekends. In normal times, especially from 24 o'clock to 6 o'clock, it is necessary to change to a strict sleeping time.
5. Young people between the ages of 21 and 30. 8 hours of sleep is enough. A nap in the afternoon (half an hour to 1 hour) is good for the body.
To sleep better, don't eat at least 1 hour before falling asleep. Doing 20 to 30 minutes of gymnastics in the late afternoon can help you fall asleep.
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A few hours of sleep a day is the healthiest.
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13-year-old children are in the critical stage of physical development, and normal development is not only related to genetics, nutrition, exercise and other related factors, but also has a certain relationship with growth hormone secretion, and the secretion of growth hormone is inseparable from good sleep. So, how many hours does a 13-year-old child sleep a day?
According to relevant studies, the normal sleep time of 13-year-old children is between 8 and 10 hours, and below and beyond this time period, it will have a certain impact on children's physical development. In general, the younger the child, the longer and more often he sleeps.
Getting enough quality sleep every day is no less important than eating a healthy diet or being physically active. Getting enough sleep can effectively improve children's behavior, learning, and physical health.
To ensure that 13-year-olds develop good sleep habits, parents should first set a good example. Because being a good role model is far more effective than verbal discipline, good sleep habits are the best education for children.
Let children develop good habits of work and rest, and cultivate what children need to do at what time and time from an early age. Parents should often walk and play ball with their children to keep them in a good mood and help improve their sleep quality. Do not allow children to eat before bedtime, this behavior will directly lead to a decrease in the quality of children's sleep.
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13 18-year-old children should sleep 8 10 hours a day, less than 7 hours, will be less concentrated, less exercise, seriously affect learning efficiency.
Effective Sleep Recommendations:
1. Set an example. Teaching by example is more important than teaching, and parents maintaining healthy sleep habits are the best education for children.
2. Develop good work and rest habits. Clarify the specific times of waking up, eating, napping, playing, bathing, bedtime stories, sleeping, etc., and what children should do when they are stupid, and it is important to go to bed and get up on time.
3. Increase parent-child interaction. Playing with your child, going for a walk, playing ball, etc., can help burn calories and improve sleep quality.
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The best sleep time for 12-13 year olds is about 10 hours.
How long a person needs to sleep varies from age to age, with adults having the most common sleep requirement of 7 to 8 hours. Broadly speaking, newborns sleep no less than 20 hours a day; About 15 hours for infants and toddlers; about 10 hours for school-age children; About 8 hours for adults; 5-6 hours for the elderly.
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