![]() ![]() During REM sleep this is when people have dreams, and your eyes are closed but they move back and forth super fast. As you enter REM sleep you will go through different stages of REM sleep. REM Sleepįinally, REM sleep is the final stage of the sleeping process. ![]() As you get older, it becomes harder and harder to enter this stage of sleep during the night. This is crucial for how you are going to feel the next day. Slow wave sleep or deep sleep is when you will be experiencing the most restorative sleep in the night. This is also the stage that children experience sleepwalking, or nightmares. When you wake up during stage 4 you feel groggy and disoriented for a few moments. In stage 4 there is no eye movement or muscle activity going on throughout the body. Stage 4 is also considered to be deep sleep by experts that study sleep patterns. As the delta waves start to appear, they are coming alongside smaller and faster waves. When in this stage you are going to have extremely slow brain waves that are called delta waves. In the third stage, you are finally making the transition from light sleep to deep sleep. Your body is preparing itself for the nexts stages where you will be going into deep sleep. In this stage, your eye movements will stop, body temperature slowly drops, and your heart rate starts slowing down. When you enter stage two you are still in a lighter sleep than you want to be in. When in stage one you can also remember fragmented visual images when you are awakened. If you ever feel like you are falling and then your muscles jerk and you wake up, that is stage one sleep. In this stage, you will wake up often and your eyes are moving very slowly. Stage 1 of the sleep process is when you are in very light sleep falling in and out. As you would expect, this starts in stage 1 and then works all the way until stage 5 which is REM sleep. There are 5 different stages that our bodies go through as we are sleeping in the night. Once we are asleep, the adenosine in our blood slowly starts breaking down. Another chemical called adenosine builds up throughout the day in our blood which starts causing drowsiness. There are other neurons located at the base of the brain that begin to signal as we start to fall asleep. The neurons in the brainstem produce neurotransmitters like serotonin that keeps the brain active when we are awake. These come in different groups of nerve cells, neurons, and inside the brain. Your sleep is controlled by neurotransmitters that signal whether you are awake or asleep. It is relatively easy to wake someone from stage 1 sleep in fact, people often report that they have not been asleep if they are awoken during stage 1 sleep.To start, you need to know what sleep really is and how you get your brain and body into that state. Theta waves are even lower frequency (4–7 Hz), higher amplitude brain waves than alpha waves. As an individual continues through stage 1 sleep, there is an increase in theta wave activity. This pattern of brain wave activity resembles that of someone who is very relaxed, yet awake. The early portion of stage 1 sleep produces alpha waves, which are relatively low frequency (8–13Hz), high amplitude patterns of electrical activity (waves) that become synchronized. In terms of brain wave activity, stage 1 sleep is associated with both alpha and theta waves. ![]() In addition, stage 1 sleep involves a marked decrease in both overall muscle tension and core body temperature. During this time, there is a slowdown in both the rates of respiration and heartbeat. Stage 1 sleep is a transitional phase that occurs between wakefulness and sleep, the period during which we drift off to sleep. The first stage of NREM sleep is known as stage 1 sleep. In this section, we will discuss each of these stages of sleep and their associated patterns of brain wave activity. The first three stages of sleep are NREM sleep, while the fourth and final stage of sleep is REM sleep. In contrast, non-REM (NREM) sleep is subdivided into three stages distinguished from each other and from wakefulness by characteristic patterns of brain waves. Brain waves during REM sleep appear very similar to brain waves during wakefulness. Rapid eye movement (REM) sleep is characterized by darting movements of the eyes under closed eyelids. Sleep can be divided into two different general phases: REM sleep and non-REM (NREM) sleep. These changes in brain wave activity can be visualized using EEG and are distinguished from one another by both the frequency and amplitude of brain waves. Instead, sleep is composed of several different stages that can be differentiated from one another by the patterns of brain wave activity that occur during each stage. Differentiate between REM and non-REM sleep. ![]()
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