Circadian Rhythms Essay

professionals work rotating shifts, it can cause several problems with a person’s biological rhythm or cycles of behavior that occur regularly. Biological rhythm per module 4.1 (n.d.) is a cycle of behavior that occurs on a regular basis (Para. 9). This is true for all living things and a lot of biological rhythms are controlled by exposure to light. One of those regular rhythms is known as circadian rhythm, meaning a rhythm of a twenty-four-hour

The Circadian Timing System (CTS) is responsible for generation and synchronization of endogenous oscillations expressed by living beings, for most physiologic functions and behaviors, with period around 24 hours (for review see Dibner et al., 2010). Among the central structures of rodent circadian clock are hypothalamic Suprachiasmatic Nuclei (SCN) and Intergeniculate Leaflet (IGL) in lateral geniculate complex of thalamus. The former is considered the master pacemaker of circadian rhythms, regulating

called circadian rhythm (process C) and sleep wake homeostasis (process C). They are closely related and provide a balance between each other. (Mastin, 2013, “The Two Process of Sleep Regulation”). Circadian rhythm is governed by circadian clock which is the key mechanism that regulates the timing of sleep in the hypothalamus. It is also regulator of feeding models, core body temperature, cell regeneration, brain wave activity and hormone activity which is organized by light dark cycle. Circadian rhythm

neurotransmitters, hormones, circadian rhythm dysregulation, genetic polymorphism, and psychological factors. Stress is thought to be a seasonally linked environmental stressor associated with a change in the light/dark cycle and/or natural light availability (e.g., short

I. Introduction In chapter 4, we read about consciousness, sleep stages, different sleep disorders and the different drugs that help with sleep. Sleep is a very broad subject in my house, we either do not get enough or too much. Consciousness is the thoughts, feelings, and the mental awareness of the world outside and their surroundings. II. Does our brain sleep while we do? We have 4

Functions and causes of sleep In the following paragraphs, I will introduce two theories of sleep to explain the functions of sleep and paraphrase circadian rhyme to interpret the causes of sleep. First and foremost, restorative theory focuses on physiology aspect of sleep, which claimed that sleep is a physiological repair. Oswald who is a sleep researcher proposed that Non-REM sleep and REM sleep have specific functions, he argued that REM sleep repair for the brain whereas non-REM sleep repair

whole day but the total pre-dominant nostril airflow duration is relatively high in only one nostril for the particular day of a week. From the statistical analysis it is observed that there exist a significant (p<0.05) correlation of nasal cycle rhythm in the week days of Monday, Wednesday and Friday which with Left nostril dominance. Whereas the predominant airflow exists with Right nostril in the weekdays of Sunday, Tuesday and Saturday. From these results it is perceived the influence of infradian

especially with health. It can cause huge changes in behavior and bodily function. Its malfunctions may lead to serious chronic or fatal health problems. Thus, the body clock impacts our lives greatly. The biological clock is also known as the circadian rhythm: circa means “around,” and dies means “day” in Latin. It’s defined as a “24-hour cycle and is usually understood as a sleep-wake cycle, which makes us feel sleepy when the sun sets and wakeful when the sun rises”. According to Ph.D. Jim Waterhouse

Lindley Hill Dr. Quiray BSC-1085C-003 24 September 2015 Circadian Rhythm Disorder Commonly known as Delayed Sleep Phase Disorder (DSPD) and other names, is a disorder in which the persons internal body clock is not in sync with the morning-rise evening-sleep pattern of the majority of people. Individuals with this disorder are not able to sleep and wake at the times that are regulated by normal work and school hours. They usually get enough sleep to keep them at a functional level through

is the difficulty someone has in falling asleep, maintaining sleep and extreme tiredness throughout the day (D. Sue et al., p.425). The dyssomnias involve several disorders which include insomnia, hypersomnolence, narcolepsy, sleep apnea, and circadian-rhythm sleep wake disorder. Insomnia. Parasomnia is the abnormalities occurring during the sleep- wake transition. Non-rapid eye movement sleep arousal disorder, nightmare disorder, and rapid eye movement sleep disorder are some of the results caused