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Questions and Answers
What impact does sleep deprivation have on natural killer cell activity?
What impact does sleep deprivation have on natural killer cell activity?
- It decreases by almost 70% after just one night of four hours of sleep (correct)
- It decreases by 50% after one night of four hours of sleep
- It remains unchanged after one night of four hours of sleep
- It increases after just one night of four hours of sleep
How does short sleep for one week impact testosterone levels?
How does short sleep for one week impact testosterone levels?
- It reduces testosterone levels to that of someone 10 years older (correct)
- It reduces testosterone levels by 30%
- It increases testosterone levels
- It has no impact on testosterone levels
How many hours of sleep per night for four or five nights in a row is considered not unusual for 20 to 30 percent of the population?
How many hours of sleep per night for four or five nights in a row is considered not unusual for 20 to 30 percent of the population?
- Eight to nine hours
- Four to five hours (correct)
- Two to three hours
- Six to seven hours
What global experiment demonstrates the impact of sleep on the population?
What global experiment demonstrates the impact of sleep on the population?
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What is the common belief about beating the sun up and success?
What is the common belief about beating the sun up and success?
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