Hello hypnotist, thank you for the input. I understand it now. I was thinking dreams happened during Delta, but I see they happen during the REM phase, when the brainwaves are similar to the waking state, therefore it is also called paradoxical sleep.
Our sleep is divided into 2 phases: synchronized sleep or non-REM and desyncrhonized sleep or REM. These phases are consecutive, and together they form the sleep cycle.
When we lay down to sleep we first go through the non-REM phase, our brainwaves slow down from beta to alfa, then theta and delta. After this the brainwaves speed up a bit and then comes the REM phase, when we dream. "REM sleep is a sleep in which EEG waves resemble those occurring when we are awake. But the muscles weaken as if being paralyzed, except the muscles that cause the eye movement. Therefore, some people define this kind of sleep as 'a state in which an active brain functions in a paralyzed body'."
This cycle repeats itself 4 to 5 times along the night. "The whole process will recur interchangebly, with shorter NREM sleep and longer REM sleep until he wakes up."
For more information: http://www.sleepdisorderchannel.net/stages/
Our sleep is divided into 2 phases: synchronized sleep or non-REM and desyncrhonized sleep or REM. These phases are consecutive, and together they form the sleep cycle.
When we lay down to sleep we first go through the non-REM phase, our brainwaves slow down from beta to alfa, then theta and delta. After this the brainwaves speed up a bit and then comes the REM phase, when we dream. "REM sleep is a sleep in which EEG waves resemble those occurring when we are awake. But the muscles weaken as if being paralyzed, except the muscles that cause the eye movement. Therefore, some people define this kind of sleep as 'a state in which an active brain functions in a paralyzed body'."
This cycle repeats itself 4 to 5 times along the night. "The whole process will recur interchangebly, with shorter NREM sleep and longer REM sleep until he wakes up."
For more information: http://www.sleepdisorderchannel.net/stages/