Relationship between Light Therapy and Seasonal Affective Disorder (SAD)
Seasonal affective disorder (SAD) is best characterized as a mild depression that typically lasts for a season. This type of depression usually occurs during the fall and winter months, which tends to disappear throughout the rest of the year. The disorder was initially introduced in the DSM-IV in 1994, identified as a depression disorder with a seasonal pattern (Rosenthal & Rosenthal, 2006). Furthermore, the symptoms of SAD are very similar to major depression, but varies in severity. According to the American Psychology Association (2015), “symptoms include fatigue, pervasively sad mood, loss of interest, sleep difficulty or excessive sleeping, craving and eating more
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Due to the reduced daylight time frame within the fall and winter months along with the reduced sunshine light throughout the day, the light has potential to affect the optimal mood in a person’s behavior pattern (Partonen & Lonnqvist, 2002). Although researchers have concluded to various theories explaining the relationship between SAD and light, yet the majority have agreed that there is a significant relationship between sunshine light and the circadian cycle. Considering the rhythmic biological cycle as a main factor in SAD, one study states the amount of the hormone melatonin produced in one’s brain is probably the best index of circadian timing (Arendt, 2012). In addition, there has been additional evidence of phase delay in the timing of circadian rhythms in SAD patients as well (Partonen & Lonnqvist, 2002). According to Moscovici (2006), it is assumed “that the decrease in daylight exposure affects circadian rhythms via the retinal-hypothalamic pathways and the suprachiasmatic nucleus, the endogenous body clock, and the melatonin secretion through the pineal gland, subsequently affecting serotonin metabolism in such a way that it causes the kind of mood alterations seen in SAD.” Therefore, researchers in the clinical community began implementing light therapy to treat their SAD …show more content…
The light box is a highly designed fixture that exposes artificial light. Mayo Clinic (2015) has confirmed the light box is well designed, safe and effective; however, not approved or regulated by the Food and Drug Administration. According to Peters (2015), “The light box generates a standard wavelength and amount of light. The light provided is toward the red end of the color spectrum.” In most cases, the intensity of the bright light has ranged from 2,500 lux to 10,000 lux depending of the size of the room. The purpose of the light box is to mimic natural outdoor light; which is assumed to affect the brain chemicals liked to a person’s mood and lessen their SAD symptoms by resetting their circadian rhythm. Therefore this current research is to investigate the relationship between light therapy and seasonal affective disorder (SAD) in a clinical trial that included a randomized placebo group as well. Specifically, I hypothesized that the light therapy of 2,500 lux will lessen the symptoms of
in a SAD patient this does not occur until about two hours later. In order to
episodes of fall/winter depression alternating with periods of spring/summer euthymia (norma l mood) or hypomania (mild elation and behavioral activation)” (2). There has been much research done to support the SAD and to find effective treatments for the annual malady such as bright light therapy. SAD generally occurs in the winter months, beginning around November and ending around March. People with symptoms of SAD differ from regular depressives in that winter depressive; have fewer suicidal tendencies, a less negative mood, fewer signs of dependency and less self-criticism. Symptoms of SAD include overeating, weight gam,
[, when the boy was three,] the patient complained of fatigue and apathy from October onward. He had been easily irritated, suffered from anxiety, and avoided his friends. He had needed more sleep than previously and have been difficult to awaken in the morning. His teachers described him as dreamy and absent-minded during the winter but energetic during the summer” (Ybe Meesters, 1998)
However, these winter blues can change their daily lives for the worse. The medical field calls this Seasonal Affective Disorder, or SAD for short. According to the Mayo Clinic Staff, SAD usually begins and ends the same time every year. Most commonly, it is during the late Fall and Winter months, but can also be seen in Spring and Summer. While almost anyone could be affected by this, it is most common in women, those who lose significant sunlight during winter, and those aged 15-55 (¨Seasonal Affective Disorder (SAD)- Topic¨). Seasonal Depression has a magnitude of symptoms and they can change due to which season is causing the problem. Overall, there has been reported problems of insomnia, low energy, irritability, and appetite changes (¨Seasonal Affective Disorder
There are several types of depression some of them are but may not be limited to: Major Depression one is said to experience this most days of the week. Bipolar Disorder, these individuals experience mood episodes that can result in high energy to low depressive periods. Seasonal Affective Disorder is said to affect one mostly during the winter months when one is unable to obtain as much sunlight due to the days growing shorter. Postpartum Depression is a major depression that may affect some women in the weeks and months after birthing a child. Premenstrual Dysphoric Disorder may affect some women at the start of their menstrual cycles each month. 'Situational' Depression may affect an individual when they are having trouble managing a stressful event in their life, such as a death in the family, a divorce, or losing a job. People with psychotic depression have the symptoms of major depression along with "psychotic" symptoms. For some one having atypical depression, a positive event can temporarily improve your mood (WebMD, 2014). This disease is devastating for both the individual it affects as well as his/her environment.
North Dakota is far from the equator, creating long cold winters. Besides making people cold, the decreasing temperatures also have a significant effect on mental illness. Seasonal affective disorder, also known as (SAD) is a psychological condition identified in the 1980s. Seasonal affective disorder effects 4-6 percent of people in the united states. (SAD) affects women 4 times as much as men.
There really have only been studies conducted on people with possible SAD since 1984 when a man named Norman E. Rosenthal actually defined the psychological disorder (Lam). Since Rosenthal defined SAD as a syndrome characterized by recurrent depressions that occur annually at the same time each year characterized by hypersomnia, overeating, and carbohydrate craving (Newsome), there have been several studies conducted and published on people with possible SAD. Many of the studies that have been published for the general public focus mainly on the different forms of treatment for SAD, such as light therapy and different forms of Phototherapy, rather than focusing on the cause. Discovering the main causes of SAD would help to clearly identify who is actually in need of treatment related to light therapy compared to anti depressants. In my situation I had symptoms that were both characteristic of what identified SAD patients and patients suffering from mild forms of depression. When symptoms of one disorder are so closely related to symptoms of
Seasonal depression occurs only at a certain time of the year, usually winter, because the number of daylight hours is lower. Another form of depression is psychotic depression, which is when depression and hallucinations are experienced at the same time. They all have different symptoms and should be approached differently to receive the correct treatment.
Although the author is wrong about how does Circadian Rhythms happened and how to prevent it(only for 1 particular way). First of all, the author is wrong about having a dark room can help their kids, this only result in one way is depression since depression is about not interacting with people. In facts, interacting with people by talking, have fun, are ways to help the kids to release their stress at school. Furthermore, if a kid have good social life, he or she should be able to have no reason for getting depress due to their joy and love of life and games, on the contrary, by taking their equipment of having fun, they're more likely to get bored, angry, lonely, and pick on at school for not having a social network life. Therefore I conclude that the reasons that kids having depression is because of the environment and away to prevent it is to create opportunities for kids to talk with someone they feel safe, close or even able to talk with. Someone that they can trust such as a mentor health guider online. The main point of this is to help kids to communicate with someone, if they're can't communicate, that's mean they're not living but rather is creating
Seasonal Affective Disorder (SAD) is a type of depression that’s related to changes in seasons. SAD begins and ends about the same time every year. SAD is a subtype of recurrent depression that involves a major depressive episode onset in the fall and/or winter months with full remission in spring. SAD prevalence rate increases with latitude ranging from 1.4% in Florida to 9.9% in Alaska in the U.S. 5% of the U.S. population that is 14.5 million American is affected. Surveys show that SAD affects women more than twice as men. This points out that female sex hormones may play a role in sensitizing the brain to changes in environment. SAD patients spend more than 40% of the year with substantial depressive symptoms affecting friends, families, and workplace during most years, beginning young adulthood. Provided its high prevalence, recurrent clinical course, episode duration, and associated impairment, SAD is a significant mental health problem and an important challenge to public (Rosenthal, 2014).
So, there are statistics showing that people with age-related macular degeneration have a higher risk at becoming depressed versus people who do not have age-related macular degeneration. This is believed to be stemmed from the decrease in socialization and independence. These patients who were once able to live on their own and maintain a normal social life are no longer able to do the things they once did on their
Seasonal Affective Disorder (SAD) takes place during the winter weather, this is due to the lessening of the sunlight during those months. The symptoms include lack of energy, eating more than you would usually, sleeping more and gaining weight. People are diagnosed after they have had these symptoms present during the winter for more than 2 years. This type of disorder can be treated with artificial light treatment. During light therapy, you sit or work near a device called a light therapy box. The box gives off bright light that mimics natural outdoor light.
Depression is defined as, “a mood disorder marked especially by sadness, inactivity, difficulty with thinking and concentration, a significant increase or decrease in appetite and time spent sleeping, feelings of dejection and hopelessness, and sometimes suicidal thoughts or an attempt to commit suicide” (Merriam Webster). A close friend of mine battles depression and would describe it is, “a debilitating mood that makes it hard to get out of the bed in the morning, a desire to sleep all the time, inability to experience joy, and apathy towards life.” Due to its prevalent occurrence among several people groups throughout history, depression is known as the “common cold of mental illnesses” and has been called “the most widespread, serious,
Currently, people who practice light therapy do so with the use of a light box. This device produces bright light comparable to the brightness of the sun on a summer day. Sitting in front of this light for a prescribed amount of time is expected to affect a person’s serotonin levels, which are commonly understood as being responsible for maintaining a positive mood.
Furthermore, results did not support the hypothesis that the 1:00 PM class would have more positive moods than the 8:00 AM and 4:00 PM classes; however, results did suggest that mood was affected by the time of day. Nevertheless, only particular times were affected, for instance the 4:00 PM late afternoon class had higher scores for the negative moods than the 8:00 AM class. Also, the 4:00 PM class had higher scores on the shyness subscale than the 1:00 PM midday class. The results that the late afternoon class had more negative mood than the midday appear to go against the current literature given that the research suggests that Negative Affect does not fluctuate throughout the day and is not related to the circadian rhythm (Murray et al., 2002). In contrast, Positive Affect appears to be related to the circadian rhythm, tends to increase throughout the day until about 9pm, when PA