Seasonal Depression (SAD): Symptoms, Causes & Treatment

Seasonal depression, also known as seasonal affective disorder (SAD), is a type of depression that follows a seasonal pattern. It typically begins in the fall and continues through the winter months, although it can also occur in the spring or summer. Symptoms of SAD may include:

* Feeling sad, down, or hopeless most of the day, nearly every day

* Losing interest in activities that you used to enjoy

* Having low energy and feeling fatigued

* Difficulty concentrating or making decisions

* Changes in sleep patterns, such as sleeping too much or too little

* Changes in appetite, such as eating too much or too little

* Feeling worthless or guilty

* Having thoughts of death or suicide

SAD is thought to be caused by a combination of factors, including changes in the amount of daylight during the day, changes in melatonin levels, and genetic factors. Treatment for SAD may include light therapy, medication, and psychotherapy.