This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Psychiatry
All of the following are associated increased REM latency, except ? 
Select and explain. 
A. First night effect, B. SSRIs, C. Narcolepsy, D. Restless leg syndrome
C: Narcolepsy
Answer: C: Narcolepsy 
Explanation: Ans. C. NarcolepsyIncreased REM latency -PTSDRestless leg syndrome.First night effectSSRI'sTCA'sEthanolLithium