Frequently Asked Questions (FAQ's)
Question:
What is sleep?
Answer: Sleep is a natural periodic state of rest for the mind and body. Regular intervals of sleep are necessary for health.
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Question:
What happens to the body during sleep?
Answer: During sleep, there is a decrease in bodily movement. The muscles relax, and the eyes usually close.
The pulse is slower, and respiratory movements fewer in number but more profound.
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Question:
What happens to the mind during sleep?
Answer: During sleep, consciousness is lost, dreams may occur, and memory is reorganized.
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Question:
How much sleep is required?
Answer: The amount and periodicity of sleep in humans vary with age, with infants sleeping frequently for shorter periods, and mature adults sleeping for longer uninterrupted periods. Eight hours of sleep each night is recommended.
A short afternoon nap can also be helpful.
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Question:
What if you get too much sleep?
Answer: If you are sleeping too much, you will not accomplish much, and will tend to be poor.
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Question:
How is time measured?
Answer: Time is measured with a calendar or a clock. Time can be divided into years, months, weeks, days, hours, minutes, and seconds.
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Question:
What is twilight?
Answer: Twilight is the time of the day when the sun is just below the horizon. During twilight the light from the sky is soft and diffused.
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Question:
How often does twilight occur?
Answer: Twilight occurs twice a day, in the early evening and early morning. Twilight usually refers to the period between sunset and dark.
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Question:
Is time travel possible?
Answer: We are all traveling into the future. We don't know of anyone who has successfully traveled back in time.
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