In adults, blood pressure is considered normal if the top number (systolic pressure) is between 90 and 120 and the bottom number (diastolic) is between 60 and 80. There are several classes of blood pressure medications. Each class lowers blood pressure in a different way.
For other uses, see Narcolepsy (disambiguation). Narcolepsy is a long-term neurological disorder that involves a decreased ability to regulate sleep-wake cycles. Symptoms include periods of excessive daytime sleepiness that usually last from seconds to minutes and may occur at any time.
A person with narcolepsy is extremely sleepy all the time and, in severe cases, falls asleep involuntarily several times every day. Narcolepsy is caused by a malfunction in a brain structure called the hypothalamus. Mild cases of narcolepsy can be managed with regular naps, while severe cases need medication.