In this lesson, students build on the understandings developed in Lessons 1 and 2 and draw conclusions based on literary elements. Students will: 1  draw conclusions based on information within a text, including determining the theme of a text.
What is seasonal affective disorder (SAD)? Seasonal affective disorder, or SAD, is a type of depression that occurs during the same season each year. You may have SAD if you felt depressed during the last two winters but felt much better in spring and summer. Some people may have SAD during the summer months. Anyone can get SAD, but it's more common in:
Seasonal Depression Overview. Seasonal affective disorder (SAD) is a type of depression that is tied to seasons of the year. Historical facts about SAD include that as early as 400 BC, Hippocrates described changes in seasons as causing illness.