Central Idea: The Science of Healthy Sleep

Questions

1. MultiChoice

   Passage: During sleep, the body repairs damaged tissue, balances hormones, and cleanses metabolic waste from brain cells. Skimping on nightly sleep impairs immune response and reduces cognitive performance. What is the central idea?

2. MultiChoice

   Passage: Rapid Eye Movement (REM) sleep is the stage where vivid dreaming occurs. Scientists have shown that REM sleep allows the brain to organize new memories and process complex emotional experiences from the day. What is the central idea?

3. MultiChoice

   Passage: The human body operates on an internal 24-hour biological clock known as the circadian rhythm. Sunlight exposure signals the brain to produce alert hormones, while darkness triggers melatonin release to promote sleepiness. What is the central idea?

4. MultiChoice

   Passage: Electronic screens emit short-wavelength blue light that fools the brain into perceiving daylight. Using phones or computers late at night suppresses melatonin production, making it difficult to fall asleep. What is the central idea?

5. MultiChoice

   Passage: Research demonstrates that students who receive eight to ten hours of quality sleep excel in focus, problem-solving, and memory recall. Chronic sleep deprivation leads to lower test scores and reduced classroom attention. What is the central idea?

6. MultiChoice

   Passage: Practicing effective sleep hygiene—such as keeping a regular bedtime schedule, avoiding late caffeine, and keeping bedrooms cool and dark—ensures faster sleep onset and uninterrupted rest throughout the night. What is the central idea?

7. MultiChoice

   Passage: Long-term lack of sleep raises the risk of developing chronic diseases, including obesity, diabetes, and cardiovascular disorders. Sleep is a fundamental health pillar equal in importance to exercise and nutrition. What is the central idea?

8. MultiChoice

   Passage: Stage 3 non-REM sleep, known as slow-wave deep sleep, is when the body secretes human growth hormone. This phase restores muscle tissue, strengthens bones, and rebuilds energy spent during daily activities. What is the central idea?

9. MultiChoice

   Passage: During puberty, adolescents experience a circadian phase delay, shifting melatonin release about two hours later. This natural shift makes teenagers naturally sleepier later at night and reluctant to wake early. What is the central idea?

10. MultiChoice

    Passage: A brief nap of 20 to 30 minutes improves mood and focus without causing grogginess. However, longer naps late in the afternoon interfere with night sleep drive, creating sleep insomnia. What is the central idea?

11. MultiChoice

    Passage: Studies show that going without sleep for 18 hours slows motor reaction time similarly to illegal alcohol intoxication. This impairment compromises reflexes, coordination, and split-second judgment skills. What is the central idea?

12. MultiChoice

    Passage: Psychologists believe dreams act as safe mental simulations for processing stressful events. Dreaming diffuses painful emotional charge attached to daily memories, supporting mental health and resilience. What is the central idea?