The document discusses sleep, dreams, and sleep disorders. It explains that sleep is needed to rest the body and mind, fight infections, and recover from stress. Without enough sleep, people can become irritable, lose focus, and have memory loss. Several common sleep disorders are described such as insomnia, nightmares, sleepwalking, sleep apnea, and narcolepsy. The sleep cycle is explained as alternating between NREM and REM sleep, and dreams typically occur during REM sleep. Videos and websites are provided for further information on topics like narcolepsy, lucid dreaming, and the best time to go to bed.

1. Sleep and Dreams

2. Big Question
Why do humans need to sleep?
What would happen if you went
without sleep for an extended period
of time?

3. Why do we
sleep???
People need sleep to help revive the tired body
To build up resistance to infection
Helps us recover from stress
When you go without sleep you can
become irritable, lose focus, and have
memory loss

4. Sleep Problems
Insomnia
Nightmares
Night Terrors (extreme panic)
Sleepwalking
Sleep Apnea (irregular breathing)
Narcolepsy (sleep attacks*, sleepiness)

5. Are you sleep deprived?
http://www.youtube.com/watch?v=nNhDkKAvxFk

6. Narcolepsy
Narcolepsy is a sleep disorder that causes excessive
sleepiness and frequent daytime sleep attacks.
Narcolepsy is a nervous system disorder.
Symptoms usually first occur during ages 15 to 30.
There is no known cure for narcolepsy.
https://www.youtube.com/watch?v=Myaonferplk

7. Sleep Cycle
NREM sleep: non-rapid eye movement
“quiet sleep” slow, regular breathing, absence of body
movement, slow, regular brain activity
REM sleep: A stage in the normal sleep cycle during
which dreams occur
The body undergoes marked changes including
rapid eye movement, loss of reflexes, and
increased pulse rate and brain activity.
http://www.youtube.com/watch?v=H0DJzFDOgzg

8. NREM sleep is divided into four stages
STAGE ONE
STAGE TWO
STAGE THREE
STAGE FOUR
REM Sleep
Sleep Cycle

12. Best time to go to bed…
http://sleepyti.me/

13. Many people believe that dreams conceal
hidden symbols or messages

14. Dreams
A sequence of images, sounds and
feelings experienced while sleeping
Strongly associated with rapid eye
movement (REM) sleep
The contents and biological purposes of dreams are
not fully understood, though they have been a
topic of speculation and interest throughout
recorded history.

15. Why do we Dream???
https://www.youtube.com/watch?
v=7GGzc3x9WJU&list=PLE366ED8E8E8C53BC

16. Lucid Dreams
http://www.youtube.com/watch?v=lYSX51xBkos

17. Sleep & DreamFacts
One-third of your life is spent sleeping.
In an average lifetime, you would have spent a total
of about six years of it dreaming. That is more than
2,100 days spent in a different realm!
Everybody dreams. EVERYBODY! Simply because
you do not remember your dream does not mean
that you do not dream. In fact, you have several
dreams during a normal night of sleep.
Dreams are indispensable. A lack of dream activity
may imply some protein deficiency or a personality
disorder.

18. On average, you can dream anywhere from one to
two hours every night. Moreover, you can have four
to seven dreams in one night.
Blind people do dream. Sound, touch, and smell
become hypersensitive for the blind and their dreams
are based on these senses.
Five minutes after the end of the dream, half the
content is forgotten. After ten minutes, 90% is lost.
Studies have shown that your brain waves are more
active when you are dreaming than when we are
awake.

19. Toddlers do not dream about themselves. They do not
appear in their own dreams until the age of 3 or 4.
If you are snoring, then you cannot be dreaming.
In a poll, 67% of Americans have experienced Deja Vu in
their dreams, occurring more often in females than males.
According to a research study, the most common setting for
dreams is your own house.

20. What Are Dreams?
https://www.youtube.com/watch?v=V24ulcmRB-g
Psychologists and brain scientists
have new answers to an age-old
question.