02 | 1 | 2008 Posted By Regan Zambri & Long

Seasonal Affective Disorder (SAD): Risk Factors and Warning Signs

The earlier evenings and colder weather of winter are hardly as uplifting as a crisp, spring morning.  For people with Seasonal Affective Disorder (SAD), however, the winter season can be dangerously depressing.  According to experts at the Mayo Clinic, SAD may be rooted in three components of patients' chemical makeup:

  • "Your circadian rhythm. Some researchers suspect that the reduced level of sunlight in fall and winter may disrupt the circadian rhythm in certain people. The circadian rhythm is a physiological process that helps regulate your body's internal clock — letting you know when to sleep or wake. Disruption of this natural body clock may cause depression.
  • Melatonin. Some researchers theorize that seasonal affective disorder may be tied to melatonin, a sleep-related hormone that, in turn, has been linked to depression. The body's production of melatonin usually increases during the long nights of winter.
  • Serotonin. Still other research suggests that a lack of serotonin, a natural brain chemical (neurotransmitter) that affects mood, may play a role. Reduced sunlight can cause a drop in serotonin, perhaps leading to depression."

    While SAD affects each person differently, and can be treated in different ways, the American Academy of Family Physicians advises that the symptoms of winter time SAD typically include the following:

  • "A change in appetite, especially a craving for sweet or starchy foods
  • Weight gain
  • A heavy feeling in the arms or legs
  • A drop in energy level
  • Fatigue
  • A tendency to oversleep
  • Difficulty concentrating
  • Irritability
  • Increased sensitivity to social rejection
  • Avoidance of social situations"

    If you or someone you know exhibits the signs or symptoms of SAD or depression, don't waste time -- contact your physician and seek medical help immediately. 

    Previously on the DC Metro Area Medical Malpractice Law Blog, we have posted articles related to:

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