Nov. 22, 2016 5:54 p.m. ET. The Obama administration considers North Korea to be the top national security priority for the incoming administration, a view it has conveyed to President-elect Donald Trumpâs transition team, according to people familiar with the conversations.
Narcolepsy with cataplexy is caused by the loss of a chemical in the brain called hypocretin. Hypocretin acts on the alerting systems in the brain, keeping us awake and regulating sleep wake cycles.
The disorder also may cause muscle weakness. Most people who have narcolepsy have trouble sleeping at night. Some people who have the disorder fall asleep suddenly, even if they're in the middle of talking, eating, or another activity. Narcolepsy also can cause: Cataplexy (KAT-ah-plek-se). This condition causes a sudden loss of muscle tone while you're awake.