The average person spends about _____ of their life dreaming.

• A. one year
• B. ten years
• C. three months
• D. six years

Answer: (D)

Verified step by step guidance

1. Understand that the problem is asking about the average amount of time a person spends dreaming over their lifetime.
2. Recall that dreaming occurs primarily during the REM (Rapid Eye Movement) stage of sleep, which happens multiple times per night.
3. Consider that an average person sleeps about 7-8 hours per night, and approximately 20-25% of that sleep is REM sleep, during which dreaming is most vivid.
4. Calculate the total hours spent dreaming by multiplying the total hours of sleep over a lifetime by the proportion of REM sleep, then convert those hours into years.
5. Compare the calculated total dreaming time to the given options to identify the closest estimate, which is six years.