Link Between Mis And The Circadian Clock

Circadian rhythms occur every 24 hours; an example of a circadian rhythm is the sleep-waking cycle. We are diurnal animals who are active during the daytime and asleep at night, other animals are nocturnal they are active at night but asleep during the day. The circadian rhythm depends on the interaction of physiological and psychological processes to be tuned into the sleep-waking cycle so energy is provided when needed. As diurnal humans we have a fairly stable sleep pattern with the time we go to sleep and the time we wake up, this consistency suggests an internal mechanism controls sleep, endogenous pacemaker. However, this can be overridden by external factors, exogenous zeitgebers.

Do not take this study lightly. Sleep is a biological need, it is vital to the human body. Deprivation will not kill anyone directly. However, it will cause personality shifts (irritations, mood swings, microsleeps), hallucinations, and paranoia. Microsleep is temporary sleep that lasts anywhere from 1 second to 30 seconds. An individual becomes unconscious for that time period and fails to process sensory input. Loss of sleep also affects concentration, memory, hunger, weight, and the immune system, all negatively. Studies show that driver fatigue is the cause of 20% of US car accidents. When the clocks ‘spring forward’ in the Spring, more accidents

This essay focuses on evaluating three functions of sleep. These functions include mental health (Jackowska et al, 2011), cardiovascular disease (Kronholm et al, 2011) and memory (Hu et al, 2006). The key aspects are explained in detail with regards to studies. The findings from the studies will help justify the function and it’s involvement with sleep. Sleep is important for an individual’s well being, survival, brain development, emotional regulation, cognitive function, memory, and in order to protect mental and cardiovascular health. An individual should sleep for 6-8 hours. A recent suggestion by the American Academy of Sleep Medicine recommended that an individual should sleep for minimum 7 hours. The quality of sleep is significant to maintain healthy brain functions. Evidence, indicating that good sleep quality is essential for mood and health then duration (Chandola et al, 2010). The researches implied will enable the understanding of the functions of sleep and evaluate the evidence of each of the functions, including advantages and limitations. Furthermore ethical issues are discussed, and an overall summary of the essay is briefed.

Circadian dysrhythmia, also known as jet lag, is a disruption in the body’s cycle due to traveling (Prentice, 2015). When traveling one or more time zones, the human body can be affected in many different ways. For example, jet lag can cause people to be more fatigued during the day, have decreased motivation, a loss of appetite, a feeling of disorientation, impaired physical and mental performance, a lack of concentration, and an altered sleep schedule (Kolling, Ferrauti, Pfeifer, Meyer, and Kelllmann, 2016). These can be game changing problems in athletics because teams are constantly traveling back and forth. Athletic trainers can work with athletes to treat and prevent these circadian dysrhythmia signs and symptoms.

Cardiovascular disease is a global health problem causing nearly 1 in 3 deaths every year. Many of these deaths are due to coronary heart disease. Myocardial infarction (MI) is a major manifestation of coronary heart disease. In 1959, the World Health Organization defined MI as a combination of 2 of 3 characteristics: typical symptoms, enzyme rise, and a typical electrocardiographic (Patil, 2011).

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 at Liverpool John Moores University, “The body clock so precisely controls our body, disrupting which can have profound implications.” Furthermore, researchers substantiate that it’s also in charge of one’s sleep, hunger, thirst, mental alertness, mood swing, immunity, etc. The biological clock is just a dissimilar facet of time. While physical clocks literally depict the abstract ticking time, body clocks open to a distinct perception of inner-body time, which do not rely on Earth’s rotation but on the reactions among neurons

People with irregular job hours or who function something other than day hours have been shown to have a damaging impact on health and wellness in some studies. This study specifically carried out at the University of Pittsburgh reveals that waking up late may be bad for health and wellness. Social jetlag is a mismatch in between a person's socially-imposed rest timetable and also their natural circadian rhythm. Scientists said social jetlag

Based on the latest update on the National Sleep Foundation’s sleep time duration recommendation, seven to nine hours of sleep for young adults and adults represent the standard amount of sleep for healthy individuals.(Hirshkowitz et al., 2015) To be fair however, it comes as no surprise to most people, as it has, for many years, have been sleeping around those hours before. Be that as it may, it helps to bring into light why in recent years, more and more people are getting less sleep than they used to. As observed previously, it should not, and is not challenging to find evidence of people reportedly lacking sufficient sleep. In reference to a poll made by the National Sleep Foundation, approximately 39% of people living in Great Britain, 53% of Americans, and 66% of Japanese all report sleeping fewer than seven hours on an average work night. This is reason for concern evidently as any sleep times far below of the seven to nine hour time range most typically indicate signs or symptoms of more severe physical health problems. In particular, recent studies have been providing evidence that correlates the lack of adequate sleep with increased risk of health problems such as: type 2 diabetes, child- and adulthood obesity, cardiovascular disease, hypertension, and a higher risk of mortality to top it

Published in Accident Analysis and Prevention, the researchers studied the circadian rhythms of 29 college students with extreme chronotypes out of a database sample of more than 500. Chronotypes were determined by questionnaires that asked about sleep habits and when each student felt the most energetic. Next, the student drove at 8am and 8pm using a driving stimulator to

When people hear the term “cardiovascular disease” they often think of heart attacks or strokes but heart disease exists way beyond just heart attacks or strokes. Mayo Clinic (2014) defines heart disease as “a range of conditions that affect your heart”. The most common forms of cardiovascular (heart) disease, besides heart attack and stroke, are: coronary artery disease, high blood pressure, cardiac arrest, congestive heart failure, arrhythmia, congenital heart disease, and so many more. This essay is going to explain what cardiovascular disease is, the history of it, what causes heart disease, how to prevent it and the treatments available.

Clearly differentiate the pathophysiology of angina and myocardial infarction, including signs and symptoms. (5 marks)

Brugada Syndrome was first described by brothers Pedro and Joseph Brugada in 1992. Nearly 30% of all BrS patients carry a pathogenic mutation in the SCN5A gene. The syndrome is thought to account for 20% of unexplained sudden death in the setting of a structurally normal heart and 12% of sudden cardiac arrest cases (Brugada et al 2014). Brugada Syndrome classified as a primary electrical disease is known to cause spontaneous ventricular fibrillation. When the arrhythmia occurs, it tends to be in the evening hours. This is thought to be due to increased nocturnal parasympathetic activity as part of the body’s natural circadian rhythm (Antzelevitch et al.

Circadian rhythm is our very own biological clock that has regular bodily rhythms that occur on a 24-hour cycle. This “clock” is what controls our sleep cycle, along with body temperature and wakefulness. The bodily clock does a good job, but sleep isn’t perfect. There are many sleep disorders that can turn out peaceful night of sleep into a nightmare, and not like a dream kind of nightmare. The most prevalent one of these is insomnia, or the persistent problems in falling or staying asleep, with 1 in 10 adults having some sort of the disorder. There is also narcolepsy, or sudden attacks of overwhelming sleepiness, sleep apnea, or the sudden lack of breathing during sleeping, causing the victims to awaken, and night terrors, or a sleep disorder characterized by high arousal and an appearance of being terrified (Myers,

Aside from noticing night and day and clocks our body has its own system to tell us when to sleep and when to wake, our circadian rhythm. The human body naturally runs on a twenty five hour clock, so living on a twenty four hour schedule is often hard on the body because it loses an hour each day. On top of this natural loss most people do not get the right amount of sleep each night which can cause a whole host of problems. This is part of

Working the night shift is a common practice in industrialized societies. Nevertheless, its adverse effects should not be excused as this plays a vital part in control of cancer and heart disease. Prevailing in healthcare, transport and production industries, its irreversible effects on bodily functions play a vital role in reducing accidents, sleep regulation, performance, and quality of rest.