A nurse evaluates a 42-year-old client who recently transiti…
A nurse evaluates a 42-year-old client who recently transitioned from day shift to permanent night shift work (11 p.m. to 7 a.m.). The client reports difficulty sleeping during the day despite blackout curtains, decreased appetite, and a 5-pound weight loss over 3 weeks. Which physiological change best explains these manifestations?
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