As you get older, you have fewer less) during sleep, suggesting that your brain actively has to work to keep you sleeping.
A)sleep spindles
B)delta waves
C)K-complexes
D)synchronization

Question

Quizplus · Accepted Answer

Sleep spindles are brief bursts of brain activity that occur during stage 2 of non-REM sleep. They are thought to help protect sleep by suppressing external stimuli and promoting consolidation of memory. As we age, the number of sleep spindles we experience decreases, indicating that the brain has to work harder to maintain sleep.

As You Get Older, You Have Fewer Less) During Sleep