SAD is caused by a biochemical imbalance in the hypothalamus due to the shortening of daylight hours and the lack of sunlight in winter. For many people SAD is a seriously disabling illness, preventing them from functioning normally without continuous medical treatment.
There are many people suffering from this disorder, without even knowing it. So it's important to know and recognize the symptoms of SAD, such as:
Depression
- Low mood, worse than and different from normal sadness
- Negative thoughts and feelings
- Guilt and loss of self-esteem
- Sometimes hopelessness and despair
- Sometimes apathy and inability to feel
Sleep Problems
- The need to sleep more
- A tendency to oversleep
- Difficulty staying awake during the day and/or disturbed sleep with
very early morning wakening
Lethargy
- Fatigue, often incapacitating, making it very difficult or impossible to carry out normal routines
Over Eating
- Craving for carbohydrates and sweet foods leading to an increase in weight
Cognitive Function
- Difficulty with concentration and memory
- The brain does not work as well, or as quickly
Social Problems
- Irritability
- Finding it harder to be with people
Anxiety
- Tension
- Stress is harder to deal with
Loss of Libido
- Less interest in sex and physical contact
Sudden Mood Changes in Spring
- Sharp change in mood
- Some experience agitation and restlessness and/or a short period of
hypomania (over activity) - No dramatic mood change but a gradual loss of winter symptoms
There are many treatments for this disorder. If you are experiencing any of these symptoms make sure to talk to your doctor.