Seasonal affective disorder (SAD)

Seasonal affective disorder (SAD) is a type of depression that comes and goes in a seasonal pattern. SAD is sometimes known as “winter depression” because the symptoms are usually more apparent and more severe during the winter. A few people with SAD may have symptoms during the summer and feel better during the winter. Symptoms of SAD Symptoms of SAD can include: a persistent low mood a loss of pleasure or interest in normal everyday activities irritability feelings of despair, guilt…