Seasonal Affective Disorder

Teaching the neurons to meditate

In the late 1990s, Jane Anderson was working as a landscape architect. That meant she didn't work much in the winter, and she struggled with seasonal affective disorder in the dreary Minnesota winter months. ...

Jul 07, 2011
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Expert discusses sleep disorders, healthy rest

With the arrival of Friday's summer solstice, there's now little night for sleepers who crave darkness. But lack of light is only one impediment to getting a good night's sleep.

Jun 21, 2013
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Weathering the winter blues

The holidays are over and there's a calendar full of cold, gray days ahead. Some of us experience the "winter blues" and others experience a more serious kind of depression like seasonal affective disorder (SAD). It can bring ...

Jan 24, 2013
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The rhythm of everything

Dawn triggers basic biological changes in the waking human body. As the sun rises, so does heart rate, blood pressure and body temperature. The liver, the kidneys and many natural processes also begin shifting ...

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Seasonal affective disorder (SAD), also known as winter depression, winter blues, summer depression, summer blues, or seasonal depression, is a mood disorder in which people who have normal mental health throughout most of the year experience depressive symptoms in the winter or summer, spring or autumn year after year. In the Diagnostic and Statistical Manual of Mental Disorders (DSM-IV), SAD is not a unique mood disorder, but is "a specifier of major depression".

Although experts were initially skeptical, this condition is now recognized as a common disorder, with its prevalence in the U.S. ranging from 1.4 percent in Florida to 9.7 percent in New Hampshire.

The U.S. National Library of Medicine notes that "some people experience a serious mood change when the seasons change. They may sleep too much, have little energy, and may also feel depressed. Though symptoms can be severe, they usually clear up." The condition in the summer is often referred to as reverse seasonal affective disorder, and can also include heightened anxiety.

SAD was formally described and named in 1984 by Norman E. Rosenthal and colleagues at the National Institute of Mental Health.

There are many different treatments for classic hormones (winter-based) seasonal affective disorder, including light therapy with sunlight or bright lights, antidepressant medication, cognitive-behavioral therapy, ionized-air administration, and carefully timed supplementation of the hormone melatonin.

This text uses material from Wikipedia licensed under CC BY-SA

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