Do you ever find yourself feeling tired or struggling to concentrate while at the office? In “Healthy Buildings: How Indoor Spaces Can Make You Sick — or Keep You Well,” Harvard public health and business experts Joseph Allen and John Macomber explore how the places we spend most of our time — our homes, workplaces, and schools — affect our well-being, focus, and problem-solving ability. Allen helped us develop the following quiz based on his research on indoor air quality.

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