QUESTIONS AND ANSWERS 2026
COMPLETE EXAM PREP WITH
VERIFIED SOLUTIONS
◉ What are the physiological and psychological importance of sleep?
Answer: Sleep is essential for physical health as it aids in recovery,
immune function, and cognitive processes, while psychologically, it
helps regulate mood, stress, and overall mental well-being.
◉ What are the stages of NREM sleep?
Answer: NREM sleep consists of three stages: Stage 1 (light sleep),
Stage 2 (deeper sleep where heart rate slows and body temperature
drops), and Stage 3 (deep sleep or slow-wave sleep, crucial for physical
recovery).
◉ What is REM sleep?
Answer: REM (Rapid Eye Movement) sleep is a stage of sleep
characterized by rapid eye movements, increased brain activity, and
vivid dreams, playing a critical role in memory consolidation and
emotional processing.
◉ What factors influence sleep quality?
Answer: Factors influencing sleep quality include environmental
conditions (light, noise), lifestyle choices (diet, exercise), psychological
state (stress, anxiety), and medical conditions (sleep disorders).