Are You Feeling S.A.D.?
Tuesday, December 16th, 2008
If You are Feeling SAD this Season, You Have Company
When daylight is at the nadir of earth’s orbit around the sun, many people feel SAD, or experience Seasonal Affective Disorder. The lack of sunlight, time spent indoors, and actual chemical changes in the brain can bring the onset of this seasonal depression. As many as half a million people in the United States have been identified with S.A.D., and many more go undetected.
Although the exact causes of S.A.D. are still being researched, the basic changes in the winter daylight to night ratio of hours may disturb the human circadian rhythm. The circadian rhythm is the physiological process that regulates the body’s internal clock and sleep patterns. Many researchers have noted that melatonin, a sleep-related neuro-chemical, has been linked to this type of seasonal depression, as the body produces more melatonin during the long periods of winter darkness. Other research has shown a link between a lack of serotonin, a neurotransmitter that effects moods, in the brain that occurs when people are not exposed to light and sunlight.
Some of the risk factors associated with S.A.D. include age, gender, geographical location, and family history. Seasonal Affective Disorder seems to be an adult depression most often found in people over the age of 20, and it decreases in the elderly. Although it more often diagnosed in women, men seem to have more severe symptoms. The farther one lives away from the equator, the more likely S.A.D. is to occur as the daylight is lessened considerably in northern locations. There is some history that points to a genetic component for S.A.D., but that could also be linked with other forms of depression that are not seasonal.
Not everyone who experiences S.A.D. will have all of the symptoms, the same symptoms, or experience the symptoms to the same degree. Common symptoms of Seasonal Affective Disorder include:
Changes in appetite
Weight gain
Drop in energy level
Fatigue and lethargy
Tendency to oversleep
Difficulty concentrating
Anxiety
Irritability
Increased emotional sensitivity
Avoidance of social situations
Lack of sex drive
Of course, a professional diagnosis needs to be made by a physician, psychiatrist, or psychologist to make sure that a person is experiencing S.A.D. and not another syndrome. After the diagnosis confirms this type of seasonal depression, there are several methods of treating S.A.D. The most effective treatment is light therapy which can come in the forms of spending more time outdoors during daylight hours, or time spent under specific light therapy machines that mimic outdoor light and trigger the neuro-chemicals needed in the brain. Other treatment modalities include medication and psychotherapy.
The best approach to managing S.A.D. is to prevent the occurrence. Some strategies for managing the change in sunlight hours are to:
Make your space sunnier, lighter, and brighter
Spend time outdoors during sunlight hours
Exercise regularly
Take good care of yourself
Practice stress management
Socialize with friends and family
Take a trip to a sunny location
Stick to your regular sleeping and eating routines
If your symptoms seem severe, or you are unable to manage them yourself through preventive measures, then go to see a professional for help. Keep your mood happy during the winter months, and enjoy the seasonal changes in nature.






