Seasonal Affective Disorder (SAD) is a condition that results in depressive symptoms during the winter months. Learn more in this informative Q&A.
Q: What are some of the main symptoms of Seasonal Affective Disorder (SAD)?
A: Although they may differ from person to person, symptoms include depression, hopelessness, anxiety, loss of energy, weight gain, and difficulty concentrating.
Q: What causes Seasonal Affective Disorder (SAD)?
A: The specific cause of seasonal affective disorder remains unknown, although experts speculate that age, genetics, and your body's natural chemical makeup all play a role. According to the Mayo Clinic, some of the key culprits may include:
- Your circadian rhythm. Some researchers suspect that the reduced level of sunlight in fall and winter may disrupt the circadian rhythm in certain people, leading to depression. The circadian rhythm is a physiological process that helps regulate your body's internal clock - letting you know when to sleep or wake.
- Melatonin. Some believe that SAD 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. Others feel 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.
Q: When is it time to seek medical attention?
A: We all feel down from time to time, but if you feel this way day after day and have no interest in the activities you once enjoyed, it's time to see your doctor. This is particularly important if you've turned to alcohol or other vices for happiness or comfort.
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