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What happens in stage 4 sleep?
Influenza
An acute viral infection that affects the respiratory system, causing fever, headache, and severe malaise, among other symptoms; also known as the flu.
Minas Tirith
A fictional city from J.R.R. Tolkien's Middle-earth universe, serving as the capital of the Kingdom of Gondor in the author's "The Lord of the Rings" series.
Young Age Group
A demographic group typically encompassing individuals in their childhood and adolescence, often targeted in health and educational programs.
Diagnosed Cases
Instances of a particular disease or condition that have been identified and recorded by medical professionals.
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