New mouse studies suggest potential sex and gender differences in narcolepsy symptoms, but will the dissimilarities extend to humans? By Lisa SpearWhat, if anything, do sex and gender have to do with a patient’s narcolepsy journey? Another study from Yale University found that men and women presented with remarkably similar narcolepsy symptoms, yet women were more likely to see a delay in diagnosis. Sex-related differences within sleep-wake dynamics, cataplexy, and EEG fast-delta power in a narcolepsy mouse model. Gender differences in narcolepsy: What are recent findings telling us?