One of the hallmark symptoms of narcolepsy is excessive daytime sleepiness, which can lead to a sudden, irresistible need to take a nap. Known as sleep attacks, these episodes can happen anytime, anywhere, regardless of how well you’re sleeping at night.e60dc2a1-f33c-4a05-9b50-8e3e8e597629d1b9ca7c-a8ca-4af6-9e0b-e31eb6fb9d86 “You might be sitting, reading, using your computer, or driving and just have this overwhelming urge to fall asleep, where you can’t stay awake,” says John Andrefsky, MD , a clinical assistant professor of neurology who specializes in sleep medicine at Case Western Reserve University in Cleveland. You may doze off for…

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