Examples Of Circadian Rhythm

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.

A rhythm is something that is regularly repeated. All living organisms experience rhythmic changes which tend to coincide with seasonal or daily environmental changes. Most organisms have an internal biological clock called endogenous pacemakers, which are influences by external environmental factors called exogenous zeitgebers, these control periodic changes. The sleep wake cycle is a circadian rhythm that repeats itself every 24 hours. However these can become desynchronised, resulting in a disruption of your biological rhythm. It can be disrupted by many factors, including Jet lag and shift work.

Research has shown that teenagers experience a change in the internal sleep clock so that waking up early and going to sleep early are difficult. Some people believe that high school classes should begin later in the day to better accommodate students’ natural sleep clocks. Waking up early can be a real struggle for teenagers. Most teens naturally sleep in until ten thirty or eleven on weekends. I do believe high school classes should start later because teens could sleep more naturally, it would give teenagers more time to do things in the mornings, and more sleep equals better

The school day should start later in order improve students’ mental health. Survey results have consistently indicated that middle level and high school students who start school at 7:15 a.m. or earlier obtain less total sleep on school nights due to earlier rise times in comparison to students at later-starting schools. () This is just the beginning of the negative impacts that early start times have on students. By starting school at a later time, students’ brains will function better, their grades and learning increases, and will be more mentally stable.

Teenagers need more sleep. If schools start school later, students would be less tired. A study of eight schools in Minnesota started school 1 hour later and grades and morale went up and tardiness went down. It has been scientifically proven in a test they did in Minnesota that 8 schools stated later and most of the students grades went up they were happier and everyone seemed more

Having a later school start time can increase a student’s academic grades and awareness. Thirty-three percent of teens say that they fell asleep in class. Even though this is a small portion of teens, falling asleep in class shouldn’t even happen once. Also, this means they are getting less than what they need,(eight to nine hours of sleep a night). A school needs to pack as much teaching time as they can in a day, but if that means waking up a student at a time so early, then there's no point.When a student doesn’t sleep as much, students are not aware as they would be if they had a good night’s rest. If students had this sleep, the would pay more attention in class. Therefor, a student would have better grades.

High school students should have a later starting time in school due to students not getting the amount of sleep they need to function. Students that stay up late at night are way too tired to learn when they get to school early in the morning. Most students who do stay up late are unable to sleep due to melatonin not yet being produced. This shows that starting school at a later time would have many positive benefits. These benefits include higher test scores, increased attendance, more participation from students, and higher performance from athletes.

Starting school at later times makes students more likely to pay attention in class. The California Academy of Sciences says, ¨Studies have shown that middle and high school students with adequate amounts of sleep, 8-10 hours, have better test scores. ¨ Since students do not get enough sleep, it would be very beneficial to start school at later times, since they would fall asleep with the correct amount of sleep. To add on to this reason, Diana Zuckerman Ph.D. says, ¨In order to compensate for the later start time, the school cut 5-10 minutes of every class and activity. The change meant students had slightly less time in the classroom, but the tradeoff was improved attention during the school day.¨ Although starting classes at later times

According to Sarah Mckibben in her article “Wake Up Call”, “A study at the US Air Force Academy, showed first year students starting class after 8 a.m. performed better not only in their first classes but throughout the day.” This proves that school starting later helps kids earn better grades. This also is helpful to the teachers in a way that the students are learning the things they should be. If school started later than the kids would be awake when they were learning the topics.

Studies have also shown that from shifting the school day to start later in the morning resulted in a boost in attendance, test scores, and grades in FOUR of the major subjects increased. Which is very important in a student’s life because they need to learn how big of a role attendance plays in everyday life, it also shows students what they are capable of in school, which make students more confident to go to college. It also showed a decrease in tardiness, substance abuse, and symptoms of depression. This is important because if a teen starts abusing substances at a young age there is high chance that they will continue to abuse them later on in life. And some even showed a dramatic decrease in teen car accidents. Also if teen feel rushed they think they have to drive fast to get to school on time, which highly increase crash rates among

Students hate getting up so early for school. Right? Teenagers on average need at least seven to eight hours of sleep each night. A two thousand twelve study shows that students who start school an hour later than usual saw their math scores on standardized tests increase an average of 2.2 percent. When students are able to get the sleep they need, they are able to get up and make it to school on time. Also when students get the sleep needed, they not only are able to make it to school on time but it gives them the sleep they need to be able to function which improves academically. High School start times should start later because it allows more sleep for teenagers, increases attendance and improves academically.

“ Then again there could be a downside to starting school later. One of theses downsides is there could be a possibility of school ending later in the day as well but, it would be unlikely” Also if students are older and have a job they may not be able to attend it. Most sport events or extracurricular activities start at around 5:30, if school starts at 9:30 and it is 6 hours school will end at around 3:30. Also If students have a job they can take a later shift and still be able to get sleep because school starts later.

Circadian rhythms are the bodies' biological internal clocks encoded within us during a 24 hour cycle interval that accommodates to our body’s natural fluctuations in a physical, mental, behavioral, and physiological form and is prominently influenced and modified in accordance to marginal potencies and stimuli reflective of probable and irrepressible variables in our natural world that can be used as the determinant for an individual’s specific developmental, communicative, and interactive compositions.

A big reason school’s may enjoy having a later start time, is because it can contribute to the school’s success. A later start time can improve the school’s overall test scores (Why We Must - and Can - Restore Safe & Healthy School Hours). Students can learn their best when they are not tired or drowsy. The School Start Later — Healthy Hours campaign stated that, “Academic improvements have been shown, and overall school climate has been measurably improved when high schools have restored later start times,” (Why We Must - and Can - Restore Safe & Healthy School Hours). The sleep researcher mentioned earlier, Wendy Troxel, said in her presentation that when kid’s are woken up by an alarm, they are literally robbed of their dreams. Dreams are associated with learning development. In order for student’s to use the most of their brains, they need to be receiving the right amount of good quality sleep. Not only do test scores rise, but so does the graduation rate, which is a major problem in today’s generation (Why We Must - and Can - Restore Safe & Healthy School Hours). In contribution to the student success, later start times could drastically improve the school’s success. Later start times have increased attendance around

It is often said that the early bird gets the worm, but that is not the case for school start times. Many schools across the country have adolescents wake up in the wee hours of the morning to get ready and go to school. Evidence from complete studies suggests that teenagers are seriously sleep deprived. Waking up so early is not always beneficial, although some people do believe that it is efficient. School start times should be later because it improves adolescents’ health and academic performance, and it can increase the safety of the community.