Students take the annual College Scholastic Ability Test, or college entrance exam, at a high school in Seoul last November. Students face enormous pressure to do well on the test and get into a top university. Airplanes are grounded on the day of the test so they won't disturb the students.
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Staci Moritz and her son Aidan, 11, play at a park in their neighborhood in Portland, Ore. Caring for three children and her injured husband exacerbated her health problems.
Beth Nakamura for NPR