Speech On Circadian Sleep Cycle

Then you will move into stage two which includes sleep spindles and K complexes. Sleep spindles are very short bursts of brain activity, and K complexes are single high voltage strikes of brain activity. Also, in stage two delta brain waves start to slow function of the brain preparing for stage three and four. Stage three and stage four i will talk about as one because they are very similar and do similar things. These stages are referred to slow wave sleep because your brain is in it’s slowest speed of function. In stage three you brain is between 20 and 50 percent delta waves, from 50 to 100 percent delta waves you are considered to be in stage four. While in stage four people may experience sleep walking and other muscular movement without knowing so. Noises as loud as 90 decibels may not be able to wake the person from sleep. During REM sleep which is after NREM sleep the brain is more active and alert. This is where most dreams occur because your brain is active but you are still sleeping. After the short 15 minute period of REM sleep you will start over with stage one of NREM these cycles normally take 90 minutes to complete. Activity during sleep can come at any point but is most common in REM or stage four of

Thesis/Central Idea: Sleep deprivation can lead to serious health problems, forgetting important information, and will have a negative impact on the outlook of life.

This stage does last longer than the previous one but only by 10 more minutes. In Non-REM 2, you have this weird and fascinating action happing in your noggin know as sleep spindles. These sleep spindles are bursts of rapid, rhythmic brain-wave activity. After this stage comes one of the best parts of sleep and the part that you’ll generally wake up covered in drool in. This happens to be Non-REM 3 which is often categorized as deep sleep. In this particular stage, we are welcomed by slow delta waves that our brain emits. When this stage has had it’s time to shine, which is 30 minutes, it is time to move onto the final

While experiencing good sleep, I will unconsciously pass through five stages: 1, 2, 3, 4 and REM sleep (citation). According to the PL100 text, these stages progress cyclically from 1 through REM then begin again with stage 1, and usually,

Have you ever not gotten enough sleep, or cut your sleep short for a class? Show of hands? Alright, well today I will be speaking with you about a subject that is near and dear to all of our hearts. Today I will be talking about sleep, specifically about REM sleep. First off does anyone know what the initials REM even stand for? REM stands for rapid eye movement, and it is the stage of sleep in which most dreams occur. It gets its name from the way your eyes move back and forth in this stage. Though those movements are slower than how your eye would move when you are awake. During a typical night, you cycle between REM and non-REM sleep, but spend the majority of your time asleep in non-REM.

Researchers have classified two definitive types of sleep, REM, otherwise known as rapid eye movement, and non REM and have divided the sleep cycle into four distinct stages. REM sleep is associated with dreaming as most of our dreams occur during this stage. REM waves are very fast and resemble beta waves which indicate that you are awake. REM sleep is usually

The brain experiences five unique phases during sleep. The fifth stage is REM sleep, which makes up one-fourth of the sleep cycle and begins after 60 minutes of sleep and repeats a few times during the night. REM sleep involves rapid eye movement, relaxed muscles and vivid dreams. During this time, when the body is extremely relaxed, major cell and tissue repair takes place. REM sleep is the ideal time for the immune system to repair the body. However, marijuana affects dreams through harmful sleep disruption.

NREM stage one is the beginning of the sleep cycle. It is known as the transitional stage between being awake and being asleep. During this stage, your brain produces theta waves, theta waves are extremely slow brain waves. This lasts about 5-10 minutes. NREM stage 2 of sleep lasts about 20 minutes. During this stage, the brain produces sleep spindles which are bursts of rapid and rhythmic brain wave activity. This is when everything starts too slows down. NREM stage 3 is when your brain produces delta waves during this stage which are very slow and deep brain waves. This stage lasts about 35-45 minutes. REM sleep is most dreaming occurs during this stage. This stage has rapid eye movement, increased respiration rate, and increased brain activity.

Many disorders and diseases can result from abnormal sleeping patterns that are triggered from sleep deprivation. The most common forms of sleep disorders include insomnia, sleep apnea, restless legs syndrome, and narcolepsy (NINDS 10). All of these sleep disorders begin from sleep deprivation and can be managed once they are diagnosed correctly. According to Urban, “Nervousness, dizziness, and sleeplessness may occur”, as a result of sleep deprivation (1). This proves that the slightest health changes can occur if sleep deprivation becomes a problem. According to NINDS, “The disorders and the resulting sleep deprivation interfere with work, driving, and social activities” (10). This shows that the effects of being sleep deprived can drastically change one’s everyday

This stage is believed to help people enter deeper stages of sleep (4). Stage 3 sleep consists of 20-50 percent delta activity and stage 4 sleep of more than 50 percents delta activity (4). Stages 3 and 4 are characterized as being slow wave sleep in addition to being the deepest levels of sleep. Approximately 90 minutes after being asleep, people enter rapid-eye-movement (REM) sleep (4). REM sleep consists of rapid eye movements, a desynchronized EEG, sensitivity to external stimulation, muscle paralysis and dreaming (4).

Throughout the night most people do not even notice all the different stages of sleep that they go into without even thinking about it. In an entire night of sleep a person goes through four different stages of sleep. When a person first lies down before their body even reaches the first level of sleep they lay there in a relaxed state slowing all of their natural body activities In the first actual

While "quiet" sleep, a person proceeds through four stages of increasingly deep sleep. Body temperature decreases, muscles relax, and heart rate and breathing slow down. The longest stage of quiet sleep affects physiological changes that help support immune system functioning. The other sleep level, REM (rapid eye movement) sleep, is the stage at people dream. Body temperature, blood pressure, heart rate, and breathing increase to levels estimated during people are attentive. Studies detail that REM sleep enhances learning and memory, and offers to emotional

This stage is where we can be woken up the easiest. Stage 2 is where our brain activity and eye movement start to slow down and stop. Stage 3 brain waves start to begin with slow and fast movements. Stage 4 also known as deep sleep is the toughest stage to wake someone up. It is the stage where there is no eye movement or muscle activity and if you were to awaken during this stage. The results would be the feeling of grogginess

 REM Sleep (Rapid Eye-Movement Sleep): a stage of sleep associated with dreaming, and characterized by frequent eye movements, suppression of the muscles.

A typical night’s sleep is much more complicated than just closing your eyes and waking in the morning. As humans, we live our life on a circadian rhythm. This means that changes occur roughly based upon a 24-hour basis. This circadian rhythm plays a major role in when we get tired and decide it’s time to sleep. This rhythm is theorized to have helped us stay safe thousands of years ago. We would fall asleep during the time that their seemed to be threats roaming around in the dark. to Once we finally get to sleep, our brains and bodies are doing much more than laying in complete stillness. There are five distinct stages of sleep that we experience as we sleep. Each is uniquely different and serves a purpose throughout the night. The first stage of sleep is a very light sleep that lasts for 5 to 10 minutes. During this stage of sleep, you may not even realize that you’re sleeping. While in this stage of sleep our brains power down by 50 percent and produce theta waves four to seven times per second. We proceed to stage two after this. During stage two, our brains power down