Circadian rhythm

With the increase in use of various electronic media, such as television, computers, video games, mobile telephones and audio devices, it is becoming increasingly important to investigate how media use is affecting individuals lifestyles. In 2011, the National Sleep Foundation published the results of a poll they conducted regarding the sleep habits of Americans across the country. They surveyed over 1000 adults asking general questions about their routine before bed and while asleep. This pie chart

Another key study, performed by Darlington et al, analyzed the function of dCLOCK, the CLOCK protein in Drosophila. This study confirmed the identity of dclock, investigated the function of dCLOCK in regulation of the circadian genes per and tim, and demonstrated the function of PER and TIM in an inhibitory feedback loop (Darlington et al., 1998). First, a screen for a homolog of the mouse clock gene in Drosophila was conducted using the cDNA library of adult Drosophila heads and a probe of the mClock

you need medication for your sleep or a supplement (e.g. melatonin), you may find that they decrease the jerking. Regimented sleep schedule: By sticking with a regimented or strict sleep schedule, your circadian rhythm should adapt. Those with variable sleep schedules may have a circadian rhythm that isn’t aligned with their sleep schedule, thus resulting in all types of physiological chaos. Decreasing this physiological chaos with a good sleep schedule may also reduce the

This study evaluated napping characteristics and restrictions in valued activities participation among community-dwelling older adults. In unadjusted models, we found an association between both intentional and unintentional napping and increased odds of restrictions in at least one valued activity, in comparison to rarely or never napping. While this association held after adjustment for demographic and health characteristics, there was no association between napping intention and restrictions in

2:00 am to 3:00 am in the morning. Then, I would wake up tired the same morning, having to go work feeling with low energy and unpleasant, as if I was messing up my circadian rhythm. Realizing that, I wanted to change the sleep pattern, I had planned that I would to sleep at 11:00 pm this week so I can take control of my Circadian rhythm. When the first night came I could not fall asleep until 2:00 am. It was difficult and frustrating at the same time when I tried to force to go sleep, since I really

A normal functioning circadian process is greatly influenced by light from the environment, since it’s detected by cells from the ganglion cell layer of the retina. A photopigment in these cells – melanopsin- depolarises when it’s exposed to light. Then, an action potential is generated and goes through the axons in the retinohypothalamic tract to the suprachiasmatic nucleus (SCN) in the anterior hypothalamus. As soon as the SCN is activated, action potentials are sent to the paraventricular nucleus

1. Interpersonal Vulnerability Factors in Depression – (list and briefly explain) Interpersonal vulnerability factors in depression include complex bereavements; role disputes (for example bad relationships) role transitions (like losing or getting a new job or a significant life change), and interpersonal deficits. Stressful life events can also provoke depressive episodes and negotiate interpersonal functioning by making it hard to cope with stressful life events and provoke more negative life

The DSM 5 has a list of sleep disorders to give people the knowledge they may need about certain disorders and when a visit to a sleep specialist is needed. When the casual sleepiness state has become an everyday affair for a lengthy period of time it becomes a much more serious issue. By knowing the causes, symptoms, and treatments of sleep disorders you can properly recognize when you may be in need of medical inspection. Throughout the following essay I will also document the causes, symptoms

A person who is known as a night owl has a circadian phase sleep disorder known as Delayed Sleep Phase Syndrome/Disorder (DSPS), this is when the person falls asleep “2-6 hours later relative to desired and socially conventional rise times”. This condition leads to societal and health disadvantages, resulting from inadequate amount of hours spent sleeping. With chronic inadequate sleep, DSPS can lead to weight gain, depression, anxiety disorders, diabetes, heart disease; however given the right environment

Thank you very much for referring Pamela on for her long-term issues with sleep. She describes both sleep onset and sleep maintenance issues and has essentially free running circadian rhythm. She will go to bed anywhere from 10.00pm to 2.00am and have a lot of trouble getting to sleep. She does find though that if she goes to bed at a later time, particularly 2.00am, that she does sleep better and will often then arise from bed at between 9.00am and 10am. She arises unrefreshed and has excessive