Which of the following is a correct match?
A. Stage 1 - light sleep
B. Stage 2 - beta waves
C. Stage 3 - alpha waves
D. Stage 4 - sleep spindles
Answer:A
Which of the following is a correct match?
A. Stage 1 - light sleep B. Stage 2 - beta waves C. Stage 3 - alpha waves D. Stage 4 - sleep spindles