Question

Albert is visiting the doctor to diagnose a sleep problem. The doctor sets up equipment to monitor Albert's sleep, and no delta waves were ever detected throughout the test. This means that Albert likely didn't reach what stage of sleep?

A. Stage 3/4
B. Stage 4/3
C. Stage 6/5
D. Stage 2/4

Answer 1

Albert likely didn't reach stage 3 sleep, indicated by the absence of delta waves, which are characteristic of this deep sleep stage.

Step-by-step explanation:

Albert likely didn't reach stage 3 sleep, also known as deep sleep or slow-wave sleep, during his sleep test. This stage is characterized by low frequency, high amplitude delta waves. Since no delta waves were detected, it implies that Albert did not enter this particular stage part of non-REM (NREM) sleep which is essential for a restful sleep experience and where the body's heart rate and respiration slow dramatically.1