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Seasonal Affective Disorder

By: Meg Dionisi. Seasonal Affective Disorder. What is SAD? . Seasonal Affective Disorder (SAD) is a type of depression Mood disorder where people develop depression only during certain type of year Usually symptoms set on in late autumn and continue through winter

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Seasonal Affective Disorder

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  1. By: Meg Dionisi Seasonal Affective Disorder

  2. What is SAD? • Seasonal Affective Disorder (SAD) is a type of depression • Mood disorder where people develop depression only during certain type of year • Usually symptoms set on in late autumn and continue through winter • People who live somewhere with long nights in winter are at greater risk • More commonly happens in women http://www.papermasters.com/images/seasonal-affective-disorder.jpg

  3. Causes of SAD • Biological clock • Simulated by light, when exposed to decreased amounts affects your: • Circadian Rhythms—internal 24 hour rhythm that controls your sleeping cycle • When affected causes depression symptoms • Serotonin—brain chemical that affects mood and sleep patterns • Low levels cause feelings of depression • Melatonin—natural hormone that affects mood, appetite, and sleep patterns • Amount released controlled by how much sunlight biological clock exposed to • Decreased levels cause symptoms of depression

  4. Where in the brain? • The hypothalamus • Where biological clock located ,where circadian rhythms produced • Pineal Gland • Located in middle of brain • Where melatonin produced http://www.nikon.com/about/feelnikon/light/chap05/img/pic_sec02_04.jpg

  5. Symptoms • Lose of interest • Gain of weight • Carbohydrate craving • Inability to focus • Oversleeping • Anxiety • Antisocial feelings http://drgullo.com/wp-content/uploads/2012/12/Seasonal-Affective-Disorder-Infographic.png

  6. Treatment • Light Therapy • Light box installed in patient’s home that simulates outdoor light • Causes chemical change in brain that brightens mood and helps sleeping cycle • Sit in front of light box for 30 minutes • Medication—antidepressants that balance brain chemicals Melatonin and Serotonin • Counseling—helps you learn about SAD and how to manage symptoms http://3.bp.blogspot.com/-3hm7JBdkOBQ/TbWhapmnDkI/AAAAAAAADiE/nkhg7fElwMg/s1600/light_therapy.jpg

  7. Works Cited • Board, A.D.A.M. Editorial. "Seasonal Affective Disorder." PubMed Health. U.S. National Library of Medicine, 18 Jan. 0001. Web. 07 Mar. 2013. <http://www.ncbi.nlm.nih.gov/pubmedhealth/PMH0002499/>. • "Seasonal Affective Disorder (SAD) - Causes and Risk Factors." WebMD. WebMD, 03 Jan. Web. 07 Mar. 2013. <http://www.webmd.com/depression/tc/seasonal-affective-disorder-sad-topc-overview>. • "Seasonal Affective Disorder." NAMI. N.p., n.d. Web. 07 Mar. 2013.<http://nami.org/Content/ContentGroups/Helpline1/Seasonal_Affective_Disorder_%28SAD%29.htm>.

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