Sleep
What is sleep?
Sleep is a periodic, natural, reversible, and near total loss of consciousness.
Current Event
Seen At 11: Surprisingly Common Disorder Could Make You Gain Weight In Your Sleep
The average human gains pounds when they do not have enough and effective sleep per night.
Function Of Sleep
occurs when unconscious desires are repressed by the Ego and Superego. This repression often stems from guilt and taboos imposed by society.
Freud's Wish Fulfillment
:
is a cognitive approach to understanding how the human mind transforms sensory information.
information processing theory:
suggests that dreams are created by changes in neuron activity that activates the brain stem during REM sleep.
is a comprehensive theory about the nature and development of human intelligence.
Activation-Synthesis Theory
Cognitive Development theory
Stages of sleep
Stage 5
Rem Sleep- breathing becomes more rapid, irregular and shallow, eyes jerk rapidly and limb muscles are temporarily paralyzed. Brain waves during this stage increase to levels experienced when a person is awake. Also, heart rate increases, blood pressure rises, males develop erections and the body loses some of the ability to regulate its temperature. Time when most dreams occur.
Stage 1
Is light sleep where you drift in and out of sleep and can be awakened easily. In this stage, the eyes move slowly and muscle activity slows. During this stage, many people experience sudden muscle contractions preceded by a sensation of falling.
Stage 4
Referred to as deep deep sleep or delta sleep, and it is very difficult to wake someone from their sleep at this stage. In deep sleep, there is no eye movement or muscle activity. This is when some children experience bedwetting, sleepwalking or night terrors.
Stage 2
eye movement stops and brain waves become slower with only an occasional burst of rapid brain waves.
Stage 3
Sleep Disorders
Extremely slow brain waves call delta waves are interspersed with smaller, faster waves
Changes in sleeping patterns or habits that can negatively affect health. These are some of the disorders;
Restless legs syndrome
A condition characterized by a nearly irresistible urge to move the legs, typically in the evenings.
Jet lag
A sleep disorder that can affect those who travel quickly across multiple time zones.
Narcolepsy
A chronic sleep disorder that causes overwhelming daytime drowsiness.
Sleepwalking
The act of getting up and walking around while asleep.
Insomnia
Persistent problems falling and staying asleep.
Sleep Deprivation
Sleep deprivation can lead to a higher risk of chronic health problems like high blood pressure, heart disease, and stroke. According to Harvard Medical School, for people with hypertension, one night without enough sleep can cause elevated blood pressure all through the next day.
Functions of sleep
We sleep for recuperation, growth, and mental function.
Vocabulary Terms:
a condition of body and mind such as that which typically recurs for several hours every night, in which the nervous system is relatively inactive, the eyes closed, the postural muscles relaxed, and consciousness practically suspended.
sleep
a kind of sleep that occurs at intervals during the night and is characterized by rapid eye movements, more dreaming and bodily movement, and faster pulse and breathing.
Rem Stage
Sleep Cycles
A sleep cycle is the stages of sleep repeated about every 90 minutes.