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Seasonal Affective Disorder (SAD) affects millions of Americans every year and is believed to be more common in parts of the country where the sunshine is less prevalent, such as here. SAD symptoms can include a down mood, loss of interest in activities that are normally enjoyable, change in appetite, sleep patterns, fatigue and loss of energy. (Navy photo by Douglas Stutz)

Seasonal Affective Disorder (SAD) affects millions of Americans every year and is believed to be more common in parts of the country where the sunshine is less prevalent, such as here. SAD symptoms can include a down mood, loss of interest in activities that are normally enjoyable, change in appetite, sleep patterns, fatigue and loss of energy. (Navy photo by Douglas Stutz)

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