Seasonal Affective Disorder
Definition
Seasonal affective disorder (also called SAD) is a type of depression that occurs at the same time every year. If you’re like most people with seasonal affective disorder, your symptoms start in the fall and may continue into the winter months, sapping your energy and making you feel moody. Less often, seasonal affective disorder causes depression in the spring or early summer.
Don’t brush off that yearly feeling as simply a case of the “winter blues” or a seasonal funk that you have to tough out on your own — you may have seasonal affective disorder. Treatment for seasonal affective disorder includes light therapy (phototherapy), psychotherapy and medications. Addressing the problem can help you keep your mood and motivation steady throughout the year.
Symptoms
Seasonal affective disorder is a cyclic, seasonal condition. This means that signs and symptoms come back and go away at the same time every year. Usually, seasonal affective disorder symptoms appear during late fall or early winter and go away during the sunnier days of spring and summer. Some people have the opposite pattern and become depressed with the onset of spring or summer. In either case, problems may start out mild and become more severe as the season progresses.
Fall and winter seasonal affective disorder (winter depression)
Winter-onset seasonal affective disorder symptoms include:
- Depression
- Hopelessness
- Anxiety
- Loss of energy
- Social withdrawal
- Oversleeping
- Loss of interest in activities you once enjoyed
- Appetite changes, especially a craving for foods high in carbohydrates
- Weight gain
- Difficulty concentrating and processing information
Spring and summer seasonal affective disorder (summer depression)
Summer-onset seasonal affective disorder symptoms include:
- Anxiety
- Trouble sleeping (insomnia)
- Irritability
- Agitation
- Weight loss
- Poor appetite
- Increased sex drive
Reverse seasonal affective disorder
In some people, spring and summer can bring on symptoms of mania or a less intense form of mania (hypomania). These can include elevated mood, agitation, and rapid thoughts and speech. Reverse seasonal affective disorder is a form of bipolar disorder.
Signs and symptoms of reverse seasonal affective disorder include:
- Persistently elevated mood
- Increased social activity
- Hyperactivity
- Unbridled enthusiasm out of proportion to the situation
When to see a doctor
It’s normal to have some days when you feel down. But if you feel down for days at a time and you can’t seem to get motivated to do activities you normally enjoy, see your doctor. This is particularly important if you notice that your sleep patterns and appetite have changed or if you feel hopeless, think about suicide, or find yourself turning to alcohol for comfort or relaxation.
