Polysomnography
Polysomnography
Stage 4 sleep.
During sleep, your heartbeat tends to slow down and become more regular. This is because the body enters a state of rest and relaxation, causing a decrease in overall physiological activity. However, certain sleep disorders or medical conditions can affect the heart rate during sleep, leading to variations in heartbeat patterns.
F.R.S. has written: 'On sleep' -- subject(s): Physiological aspects, Physiological aspects of Sleep, Sleep
P. Lavie has written: 'Sleep disorders' -- subject(s): Diagnosis, Physiological aspects, Physiological aspects of Sleep, Sleep, Sleep disorders, Treatment
sleep spindles
The rhythmic bursts of brain activity that occur during Stage 2 sleep are called sleep spindles. These are short bursts of brain waves that help in the consolidation of memories and are characteristic of this stage of sleep.
dreams are a byproduct of brain activity during sleep
The clinical study of sleep is called polysomnography. It involves monitoring various physiological parameters such as brain waves, heart rate, and breathing patterns during sleep to diagnose sleep disorders.
David B. Cohen has written: 'Where Did That Child Come From?' 'Sleep and Dreaming' -- subject(s): Dreams, Physiological aspects, Physiological aspects of Sleep, Sleep
Physiological needs are those required to sustain life, such as: * air * water * nourishment * sleep
No, during REM sleep, the brain is active, however any muscle activity is suppressed to prevent you from acting out dreams. During stages 3 and 4 of NREM sleep sleepwalking is known to occur.