DEPRESSION
Everyone feels sad or low sometimes, but these feelings usually pass. Depression (also called major depression, major depressive disorder, and clinical depression) is different. It can cause severe symptoms that affect how a person feels, thinks, and handles daily activities, such as sleeping, eating, and working.
Depression can affect anyone regardless of age, gender, race or ethnicity, income, culture, or education. Research suggests that genetic, biological, environmental, and psychological factors play a role in the disorder.
S.A.D
SAD is a type of depression characterized by a recurrent seasonal pattern, with symptoms lasting about four to five months of the year. It is estimated that millions of Americans suffer from SAD, although many may not know that they have this common disorder.
The depression associated with SAD is related to changes in daylight hours, not the calendar, so stresses associated with the holidays or predictable seasonal changes in work or school schedules, family visits, and so forth are not the same as SAD.
Read more about Seasonal Affective Disorder from the National Institute of Mental Health here > https://www.nimh.nih.gov/health/publications/seasonal-affective-disorder
