Final answer:
Decreased physical activity is one reason for the "middle-aged spread" often seen in middle adults.
Step-by-step explanation:
One reason for the "middle-aged spread" often seen in middle adults is decreased physical activity. During middle adulthood, many individuals tend to become less active due to various reasons such as busy work schedules, family responsibilities, and lifestyle changes. This reduced physical activity can contribute to weight gain and the accumulation of excess body fat, which is commonly referred to as the "middle-aged spread."
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