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Sleep: Glossary

B

blood pressure
the pressure of the blood moving through the veins and arteries

C

circadian rhythm
a cycle of rhythms in the body
committed
moved to
concentration
to focus the brain on a topic
coordination
balance, smooth movements

D

Daylight Saving Time
turning the clocks ahead by an hour in the summer to take advantage of sunlight
depression
feelings of severe sadness
deprivation
to be lacking - often to a serious level
diabetes
a serious disease in which the body cannot properly control the amount of sugar in your blood because it does not have enough insulin
discomfort
not comfortable
disruption
interruption
drought
a time of no water or rain

E

electronic devices
computers, TVs, games that run by electricity
encounter
come upon
endure
last

H

hibernation
winter sleep
hormones
chemicals that direct the body to perform jobs
hyperactivity
extremely active

I

immune system
the system of the body that fights infection and illness
insomnia
inability to sleep
insulin
a hormone made by your pancreas, it turns sugar into energy
interrupt
disturb
irrational
not usual - unique

J

jet lag
the confusion that happens to the body clock when traveling through many time zones

L

long term
memory that we hold on to for a long time

M

melatonin
a hormone made by the pineal gland that helps control your sleep and wake cycles
mucous
slimy material similar to spit

N

narcolepsy
a condition that causes people to fall asleep at random
nightmares
scary dreams
night terrors
fearful period while sleeping
NREM
non rapid eye movement - a time before or after rapid eye movement occurs

P

pineal gland
an organ that releases hormones for sleep
pneumonia
and illness of the lungs that causes difficulty breathing, coughing
predominant
mostly

R

randomness
not in an organized way
reaction times
the time it takes to respond to an event
regulated
controlled
rejuvenate
to return to normal, refresh
relaxing
less tense
REM
rapid eye movement - a deep sleep
reorganize
change and adjust
restoring
to return to original
routines
habits

S

sleep/wake homeostasis
a natural balance between being awake and asleep
sleep deprived
to lack enough sleep for good health
sleep-eating disorders
to get up and eat while sleeping
sleepwalking
to get up and move around while sleeping
snoring
a deep noise made while sleeping
Standard Time
the time kept during the winter
stimulated
activate or send a message to perform a function
stress
anxiety or tension

T

temporary
not permanent - for a short time
time zones
a geographic region within which the same standard time is used

W

well-being
comfortable and happy
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