{"id":17963,"date":"2018-12-09T13:51:08","date_gmt":"2018-12-09T18:51:08","guid":{"rendered":"http:\/\/thepapergown.zocdoc.com\/?p=17963"},"modified":"2023-03-03T15:01:14","modified_gmt":"2023-03-03T20:01:14","slug":"the-ongoing-quest-to-figure-out-sad","status":"publish","type":"post","link":"https:\/\/www.zocdoc.com\/blog\/healthcare-trends\/the-ongoing-quest-to-figure-out-sad\/","title":{"rendered":"The Ongoing Quest to Figure Out SAD"},"content":{"rendered":"<p><span style=\"font-weight: 400;\">Notoriously overcast and drizzly all year round, Seattle turns especially dour in the winter, when unrelenting darkness descends on the Pacific Northwest.\u00a0<\/span><span style=\"font-weight: 400;\">Living through a Seattle winter is a true test of someone&#8217;s ability to function without sunlight \u2014 and it&#8217;s not a test that every resident of the Emerald City passes.\u00a0<\/span>For Steven, who asked that his last name not be used, relocating there at the age of 22 manifested in a 13-year struggle with seasonal depression that ended only when he moved to Mexico.<\/p>\n<p><span style=\"font-weight: 400;\">\u201cI didn&#8217;t bother looking for [a diagnosis] until maybe eight years in,\u201d he says. \u201cI just figured this is life. My depression cleared up during the sunny months and returned with the clouds.\u201d<\/span><span style=\"font-weight: 400;\"><br \/>\n<\/span><span style=\"font-weight: 400;\"><br \/>\n<\/span><span style=\"font-weight: 400;\">Some 30 years after it was first <\/span><a href=\"https:\/\/www.normanrosenthal.com\/seasonal-affective-disorder\/\"><span style=\"font-weight: 400;\">identified<\/span><\/a><span style=\"font-weight: 400;\">, seasonal affective disorder, a form of depression related to a change in seasons, continues to be an often-misunderstood condition. The disorder, which ranges in terms of severity, can strike people whether or not they&#8217;re otherwise prone to depression and may affect up to 10 percent of the population in certain, light-deprived geographic regions. While there\u2019s obviously correlation between the darker days of the winter months and the onset of depression \u2014 one that lifts during spring and summer \u2014 researchers are still batting around hypotheses to explain exactly what&#8217;s happening to those who get SAD when the days get short.\u00a0<\/span><span style=\"font-weight: 400;\"><br \/>\n<\/span><span style=\"font-weight: 400;\"><br \/>\n<\/span><span style=\"font-weight: 400;\">Jeff Janata, a psychologist and division chief of psychology at UH Cleveland Medical Center, says that SAD is often perceived as a product of dynamic brain activity in response to light. \u201cA common theory is that melatonin, which is a brain chemical that helps us feel sleepy, is triggered by darkness,\u201d he says. \u201cWith SAD, the increased exposure to that darkness with the shorter days of winter means we\u2019re producing more melatonin and therefore getting sleepier and more lethargic.\u201d<\/span><span style=\"font-weight: 400;\"><br \/>\n<\/span><span style=\"font-weight: 400;\"><br \/>\n<\/span><span style=\"font-weight: 400;\">It\u2019s a reasonable enough explanation: A lack of sunlight might be lulling some of us into drowsiness by throwing our circadian rhythms out of alignment. But melatonin\u2019s influence in the brain doesn\u2019t stop there. \u201cMelatonin is also related to serotonin activity,\u201d Janata says. \u201cAnd that\u2019s related to mood regulation. <\/span>So SAD is really a multi-module model in terms of what\u2019s going on.\u201d<b><br \/>\n<\/b><span style=\"font-weight: 400;\"><br \/>\n<\/span><span style=\"font-weight: 400;\">But ideas about what&#8217;s going on in the brains of SAD patients change all the time. <\/span><\/p>\n<p><a href=\"https:\/\/www.theatlantic.com\/health\/archive\/2017\/03\/seasonal-affective-disorder-mosaic\/519495\/\"><span style=\"font-weight: 400;\">Recent research<\/span><\/a><span style=\"font-weight: 400;\">\u00a0exploring how birds and small mammals respond to changes in daylight has shown that melatonin may also make its way into the hypothalamus region of the brain and disrupt the production of active thyroid hormone, which help balances mood and behavior. <\/span><\/p>\n<p><span style=\"font-weight: 400;\">It\u2019s also possible that the development of SAD also has something to do with a person\u2019s chronotype, meaning when they naturally prefer to sleep during a 24-hour period (i.e., whether you&#8217;re a night owl or a morning bird).\u00a0<\/span><span style=\"font-weight: 400;\">People who are prone to \u201ceveningness,\u201d or the tendency to go to bed and wake up late, may be more <\/span><a href=\"https:\/\/www.ncbi.nlm.nih.gov\/pmc\/articles\/PMC5972175\/\"><span style=\"font-weight: 400;\">susceptible<\/span><\/a><span style=\"font-weight: 400;\"> to SAD\u2019s effects. <\/span><\/p>\n<p><span style=\"font-weight: 400;\">One <a href=\"https:\/\/www.bps.org.uk\/sites\/bps.org.uk\/files\/Events%20-%20Files\/AC2018%20Book%20of%20Abstracts.pdf\">2018 study<\/a> even established a link between\u00a0<\/span><span style=\"font-weight: 400;\">SAD and eye color. Well, potentially, because brown eyes don\u2019t absorb as much light as blue eyes, making amber-eyed people more vulnerable to darkness-related deficiencies.\u00a0<\/span><span style=\"font-weight: 400;\">A questionnaire circulated among 175 students at the U.K.\u2019s University of South Wales and Girne American University in Cyprus found that those with brown eyes were more likely to have SAD, among other mood disorders.<\/span><span style=\"font-weight: 400;\"><br \/>\n<\/span><\/p>\n<p><span style=\"font-weight: 400;\">The line between lethargy, depression and the pall of increasing darkness is often blurry. For Steven, Seattle\u2019s winters brought on a case of SAD that weighed down his whole life. \u201cIt trapped \u2018me\u2019 away for eight months per year, and something else was in control of my life,\u201d he says. \u201cI remember being in the back of my own mind, screaming the words I wanted to speak, struggling to make my body move, and it wouldn&#8217;t respond.&#8221;<\/span><span style=\"font-weight: 400;\"><br \/>\n<\/span><span style=\"font-weight: 400;\"><br \/>\n<\/span><span style=\"font-weight: 400;\">\u201cI felt completely isolated from everyone because of this, and I was completely incapable of reaching out. After a few years, I just gave up. I knew that nothing I could do would work, and I just waited until the sun came out and I could feel a little normal again.\u201d <\/span><\/p>\n<p><span style=\"font-weight: 400;\">\u00a0<\/span>In some ways, Janata says, SAD may be a normal seasonal adaptation, akin to hibernation. \u201cIt makes some sense with evolutionary theory,\u201d he says. \u201cIt used to help with survival if we slowed down in the winter, conserved our resources, gained some weight and slept a lot.\u201d<\/p>\n<p><span style=\"font-weight: 400;\">A 2018 <\/span><a href=\"https:\/\/www.medicalnewstoday.com\/articles\/321712.php\"><span style=\"font-weight: 400;\">study<\/span><\/a><span style=\"font-weight: 400;\"> from the University of Glasgow took this theory of energy conservation further, drawing a connection between having SAD and<\/span><span style=\"font-weight: 400;\">\u00a0being a woman of reproductive age. Researchers found that women were 40 percent more likely than men to exhibit seasonal depression, and that the disorder was more severe during the child-bearing years. It&#8217;s possible, researchers surmised, that SAD is an amplified result of a biological drive to shield off-spring from harsh conditions.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">Despite having an external and obvious stimulus in the sun, SAD remains one of the least-understood diagnoses in mental health. While work is being done, it receives only a fraction of the attention given to more pervasive disorders. \u201cPart of the reason for that is lack of research,\u201d says Dr. Richard Catanzaro, a chair of psychiatry at Northern Westchester Hospital, near New York City. \u201cThere\u2019s just not a ton of money being spent on it. It\u2019s not commonly seen on the acute end of psychiatry. Few people are being admitted for it.\u201d<\/span><span style=\"font-weight: 400;\"><br \/>\n<\/span><span style=\"font-weight: 400;\"><br \/>\n<\/span><span style=\"font-weight: 400;\">Catanzaro says experts still aren&#8217;t quite sure whether SAD is genetic, or if someone who hails from a sunny climate is more vulnerable to seasonal depression than a person who&#8217;s spent their entire life riding out gloomy weather. \u201cThe thing we can say with some degree of accuracy is that it occurs more in northern latitudes as opposed to southern latitudes,\u201d he says. <\/span><span style=\"font-weight: 400;\">In Florida, SAD might account for 1 percent of mood disorders. In Alaska, Toronto or Maine, it\u2019s closer to 10 percent.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">Because of the sun-exposure factor, popular treatments have often included <a href=\"https:\/\/www.zocdoc.com\/blog\/1-question-5-answers-whats-the-deal-with-vitamin-d\/\">vitamin D supplementation<\/a>, the idea being that decreased sunlight means decreased levels of the vitamin, which can influence mood and well-being. \u201cThere\u2019s not what I could call robust research showing that it\u2019s curative,\u201d Catanzaro says. \u201cIt is related to low mood and can\u2019t hurt, but treatment with light therapy or antidepressants is most effective.\u201d<\/span><span style=\"font-weight: 400;\"><br \/>\n<\/span><span style=\"font-weight: 400;\"><br \/>\n<\/span><span style=\"font-weight: 400;\">Light therapy is what most presume it to be: exposure to artificial light to make up for what the sun isn\u2019t producing. Those suspected of having SAD are typically told to sit in front of a light box for 30 minutes in the morning to prevent melatonin from running wild. While light therapy poses limited risks (<\/span><a href=\"https:\/\/www.mayoclinic.org\/tests-procedures\/light-therapy\/about\/pac-20384604\"><span style=\"font-weight: 400;\">although there are a few<\/span><\/a><span style=\"font-weight: 400;\">), some people opt for medication instead. \u201cPeople don\u2019t have the quote-unquote time for it,\u201d Catanzaro says. \u201cMe, I\u2019d take the light box. But some people need both.\u201d<\/span><\/p>\n<p><span style=\"font-weight: 400;\">Some people with SAD also try cognitive behavioral therapy, a results-oriented treatment approach centered on changing disordered patterns of behavior and thinking.\u00a0<\/span>In the case of SAD, the goal is to shift focus away from gloom and darkened moods associated with the winter months. When it comes to choosing CBT vs. light therapy, there&#8217;s no consensus among researchers yet. One 2015 University of Vermont <a href=\"https:\/\/www.uvm.edu\/uvmnews\/news\/talk-outshines-light-preventing-return-winter-blues-says-new-uvm-study\">study<\/a>\u00a0examined the effectiveness of CBT vs. light therapy to treat SAD. The next winter after the experiment took place, participants from both treatment groups reported comparable SAD relief. Two winters later, however,\u00a027 percent of participants who&#8217;d been in the CBT group were still struggling with SAD, compared to 46 percent of the light therapy group, who also reported more severe depression symptoms.<\/p>\n<p><span style=\"font-weight: 400;\">There are also people who may not need (or benefit from) either treatment \u2014 because it&#8217;s unlikely they actually have the disorder. Sometimes, the\u00a0<\/span>SAD label is applied too readily and the diagnosis becomes a\u00a0<span style=\"font-weight: 400;\">catch-all for anyone who has the winter blues. In one <a href=\"https:\/\/www.ncbi.nlm.nih.gov\/pubmed\/29145077\">study<\/a>, of 119 SAD patients interviewed two to 12 years following diagnosis, 59 percent were in remission. <\/span><\/p>\n<p><span style=\"font-weight: 400;\">\u201cThere are other things that happen in the winter besides lack of sunlight,\u201d Catanzaro says. \u201cPeople aren\u2019t necessarily as social because it\u2019s cold out. Some people have seasonal work and aren\u2019t as busy. They don\u2019t exercise as much. Some people focus on getting depressed during winter and don\u2019t remember there were two weeks in July when they didn\u2019t get out of bed.\u201d <\/span><span style=\"font-weight: 400;\"><br \/>\n<\/span><span style=\"font-weight: 400;\"><br \/>\n<\/span><span style=\"font-weight: 400;\">According to Janata, anyone can benefit from refusing a wintertime quarantine. \u201cSome people would benefit from taking up winter sports, or just spending more time outdoors,\u201d he says. \u201cEven curling up under a blanket in front of a fire is a coping strategy.\u201d Activity and light, whether natural or artificial, can stave off or help mitigate the effects of a blighted mood. <\/span><span style=\"font-weight: 400;\"><br \/>\n<\/span><span style=\"font-weight: 400;\"><br \/>\n<\/span><span style=\"font-weight: 400;\">Janata also believes the growing field of neuroscience may bring us new and compelling insight into the onset and progression of SAD. \u201cOur view of depression will broaden significantly,\u201d he says, and SAD is one of many disorders that will benefit. These biological factors are perpetually being mapped out in the lab. Researchers have expressed <\/span><a href=\"https:\/\/www.ncbi.nlm.nih.gov\/pmc\/articles\/PMC6138666\/\"><span style=\"font-weight: 400;\">interest<\/span><\/a><span style=\"font-weight: 400;\"> in ZBTB20, a receptor protein in the hippocampus that could be a \u201ccandidate gene\u201d for the disorder. Another <\/span><a href=\"https:\/\/www.ncbi.nlm.nih.gov\/pubmed\/29428773\"><span style=\"font-weight: 400;\">study<\/span><\/a><span style=\"font-weight: 400;\"> found that personality traits like neuroticism and inhibited sociability might make SAD more likely.<\/span><span style=\"font-weight: 400;\"><br \/>\n<\/span><span style=\"font-weight: 400;\"><br \/>\n<\/span><span style=\"font-weight: 400;\">In the meantime, those hit hardest by SAD may find themselves taking any measures necessary to brighten their moods.\u00a0<\/span><span style=\"font-weight: 400;\">For Steven, who had tried light therapy, medication and even hypnosis with only mixed results, that meant leaving Seattle and not looking back. \u201cI took my savings and moved to Mexico,\u201d he says. \u201cI&#8217;ve been here a few years now and no trace of SAD. Life is normal again. I&#8217;m me 100 percent of the time.\u201d<\/span><\/p>\n<hr \/>\n<h1 class=\"p1\" style=\"text-align: center;\"><span class=\"s1\">Ready to book a therapy appointment? Visit <a href=\"https:\/\/www.zocdoc.com\/psychologists\"><span class=\"s2\">Zocdoc.<\/span><\/a><\/span><\/h1>\n","protected":false},"excerpt":{"rendered":"<p>More than 30 years after seasonal affective disorder was first identified, understanding the condition remains a work in progress. <\/p>\n","protected":false},"author":24,"featured_media":17966,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[229],"tags":[19,41,132,63,120],"class_list":["post-17963","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-healthcare-trends","tag-depression","tag-mental-health","tag-research","tag-seasonal","tag-sleep","reviewer-dr-nassim-assefi"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v25.5 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>The Ongoing Quest to Figure Out Seasonal Affective Disorder<\/title>\n<meta name=\"description\" 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