10:5:17 Body Rhythms and States of Consciousness.docx - Body Rhythms and States of Consciousness Sleep and dreaming(Snoring problems are correlated with

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Body Rhythms and States of Consciousness Sleep and dreaming (Snoring problems are correlated with obesity in upper torso. Middle aged men= most common) (everyone sleeps roughly the same amount per day (Except babies, 17 hrs/day)) (sleep disorders are genetic, not from psychological problems) (the human body never adjusts to night shift work) Learning Goals (It takes 90-120 minutes to go REM-Stage1-Stage2-Stage3-(back to 2)-REM (cycle), have roughly 4-5 cycles/night) Rapid Eye Movement/dream sleep- eyes move rapidly/ where we have dreams (brain shuts out body so we don’t act out dreams). Also got paradoxical sleep). Definitions of Sleep Why we sleep - Sleep deprivation o Circadian Rhythm (may be driven by ganglion cells in the eyes) - Sleep deprivation o We need sleep to be able to function cognitively, and too much sleep deprivation will cause us to hallucinate, be cranky/grumpy, and be sleepy during the day. - Sleep as a restorative process o Kids release growth hormones during sleep, so they do grow while sleeping - Sleep as a clock driven process o Circadian Rhythm (may be driven by ganglion cells in the eyes). Our sleep-wake cycle is daily. o We sleep better when it’s dark. Sleep hygiene is important, as well as making your sleep environment as best as possible, including darkness. - Consequences of Sleep deprivation: o Appetite: get less to eat o Cognition: our memories aren’t as good, can’t focus well o Immune System: decreases with less sleep. People who are chronically sleep deprived, their immune systems don’t respond as well and they get sick more frequently o Research Rechtschaffen rats: would wake rats up in study and pop into water when they fall asleep. Only lasted 2 weeks before they died we need sleep Doctors are more likely to make mistakes during a long shift, need sleep. Mistakes could be life threatening Czeisler studied first year medical students Microsleep: people fall asleep at the wheel for roughly 2/3-6 seconds, without us even knowing it, since we’re convinced we can fight it off. But sleep gets it when it wants it. Driving Tips: - What “may” work: o get sleep the night before o avoid alcohol (like medication makes you sleepy, but they tend to be short-term solutions) o have your traveling companion help you stay awake- be active o make frequent stops at rest areas and pull over at the first signs of fatigue: take a brisk walk
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take a nap (pull over first) drink caffeine o have someone drive with you, to keep you awake o let someone else who has slept and is alert do the driving o set reasonable travel objectives - What does NOT work o Toughing it out o Turning your radio on your radio o Opening your car window for air o Driving faster/slower Why we dream Sleep disorders Developmental differences in sleep Cultural differences in sleep practices Body Rhythms Body Rhythms Circadian (about every 24 hours): When we get tired depends on the time of day.
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