Question

After Carlos had been asleep for about an hour and a half,his heart began to beat faster,his breathing became fast and irregular,and his closed eyes began to dart back and forth.Carlos was most likely experiencing:__________.

A) NREM-3 sleep.
B) sleep apnea.
C) narcolepsy.
D) REM sleep.

Answer 1

Carlos is most likely experiencing REM sleep, characterized by rapid eye movements, increased heart rate, irregular breathing, and vivid dreams.

Step-by-step explanation:

Carlos is most likely experiencing REM sleep. REM sleep is characterized by rapid eye movements, increased heart rate, irregular breathing, and vivid dreams. During REM sleep, the body is in a state of muscle paralysis, except for the muscles responsible for respiration and circulation. Carlos's symptoms align with the characteristics of REM sleep, indicating that he is in this stage of sleep.