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 exact cause of narcolepsy is unknown. There may be many causes. Most people with narcolepsy have low levels of the chemical hypocretin (hi-poe-KREE-tin). Hypocretin is an important neurochemical in your brain that helps regulate wakefulness and REM sleep.