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Consciousness, sleep environment (factor contributes to sleep), Altered…
Consciousness
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biology of sleep
Sleep is one of the human body’s biological rhythm, natural cycles of activity that the body must go through
Biological Rhythm
Circadian rhythm - a cycle of bodily rhythm that occurs over a 24-hour period→ “circa” – about, “diem” – day
• Controlled by an area within the Hypothalamus – tiny section of the brain that influences the glandular system.
- suprachiasmatic nucleus – deep within the hypothalamus; the internal clock (Master clock) that tells people when to wake up and when to fall asleep.
• Tells pineal gland to secrete melatonin, which makes a person feel sleepy: used to treat a condition called jet lag.
Purpose of sleep
-Energy conservation
-Cellular Restoration
-Brain Function
-Emotional Well-being
-Proper Insulin Function
-Immunity
-Heart Health
CONSCIOUSNESS
Consciousness - A person's awareness of everything that is going on around him or her at any given moment
Waking consciousness - state in which thoughts, feelings, and sensations are clear, organized, and the person feels alert.
(100% concscious)
Altered state of consciousness - state in which there is a shift in the quality or pattern of mental activity as compared to waking consciousness.
(Partially conscious)
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melatonin - hormone of sleep and factor contribute to sleep ( without melatonin ,it would be impossible to achieve relaxed, restful sleep)
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