narcolepsy
A long-term condition in which the brain can't keep sleep and waking properly apart, bringing overwhelming sleepiness by day and, for some, sudden muscle weakness.
Where it comes up
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01
Why can’t my teenager fall asleep before midnight?
Teenagers’ body clocks really do shift later. Why your teen isn’t sleepy at 10pm, what school start times do, and how to help without a nightly fight.
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02
What is narcolepsy, and could I have it?
Sleepy all the time, or woke unable to move? What narcolepsy is, how it differs from ordinary tiredness, its signs and how it's diagnosed.