Alcohol can suppress which stage(s) of sleep?

Alcohol can suppress which stage(s) of sleep?

• A. Stage 2
• B. Stage 3
• C. NREM
• D. Stage 1

Answer: (B)

Alcohol disrupts sleep architecture by specifically diminishing the deepest, most restorative portion of non-REM sleep. This stage, known as slow-wave sleep, is dominated by large delta waves and is crucial for restoration and recovery. When alcohol is in the system, this deep sleep is reduced, especially in the first half of the night, as the body metabolizes the alcohol and sleep becomes more fragmented. While alcohol also tends to suppress REM sleep, the most notable suppression among the options is the deep non-REM stage. That makes Stage 3 the best answer.

Alcohol disrupts sleep architecture by specifically diminishing the deepest, most restorative portion of non-REM sleep. This stage, known as slow-wave sleep, is dominated by large delta waves and is crucial for restoration and recovery. When alcohol is in the system, this deep sleep is reduced, especially in the first half of the night, as the body metabolizes the alcohol and sleep becomes more fragmented. While alcohol also tends to suppress REM sleep, the most notable suppression among the options is the deep non-REM stage. That makes Stage 3 the best answer.