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Sleep deprivation ppt
- 1. Sleep Deprivation By: Anjana Kokar
- 2. What is Sleep Deprivation? A sleep disorder characterized by having too little sleep, can be chronic or acute. Long – term sleep deprivation (lasts four days or longer) is quite uncomfortable. Effects: -Health ; in form of physical & mental impairment, impairs our ability to think, handle stress, maintain a healthy immune system and moderate emotions. •Depression •Heart Disease •Hypertension •Irritability •Slower reaction times •Slurred speech •Tremors •Weight Change (Fatigue) Sleep deprivation can be a fatal at times to and can cause death Why we Sleep? One main function of sleep is to provide a time-out period ; body can eliminate waste products from muscles and repair cells, strengthen immune system, recover physical abilities lost during day. Without sleep our bodies react abnormally.
- 3. Rapid Eye Movement (REM) What is REM? Sleep periods characterized by quick eye movements, loss of muscle tone, and dreaming. The REM periods last from a few minutes to as long as an hour, averaging about 20 mins in length. Brief History : •Breakthrough occurred in the laboratory; by Nathaniel Kleitman. •He had given one of his grad students, Eugene Aserinsky, a task of finding out whether the slow, rolling eye movements that characterize the onset of sleep continue throughout the night. •They did rapidly •William Dement were then able to correlate the REM of sleepers with changes in brain-wave patterns. •When you first climb into bed, close your eyes and relax, your brain bursts of alpha waves. •Gradually, these waves slow down further, and you drift into the land of nod, passing through 4 stages, each one deeper then the other.
- 4. Stage 1. Small waves and irregular, and you feel yourself drifting on the edge of consciousness (light sleep). Stage 2. Your brain emits occasional short bursts of rapid, high – peaking waves called sleep spindles. Minor noise won’t disturb. Stage 3. Your brain occasionally emits delta waves, very slow waves with high peaks. Your breathing and pulse slows down, your muscles relaxed, hard to wake up. Stage 4. Delta waves have now largely taken over, and you in deep sleep. Takes vigorous shaking or loud noise to awaken you. (Phrase when people talk in their sleep.) Sequence takes about 30 – 45 mins. Then you move back up the ladder from stage 4- 1. 70-90 mins past. REM. Rapid irregular waves. Your heart rate increases, your blood pressure rises and breathing becomes faster. You enter the realm of REM. Also known as “paradoxical sleep”, and usually when you are dreaming.
- 5. Psychology Period 7 Sleep Log 7.3953 8.6046 6.173 7.92 7.8306 6.723 8.7 7.6167.4 7.113 6.382 7.4 6.4626 7.61 6.7793 0 1 2 3 4 5 6 7 8 9 10 Hours Days Average Hours Slept Per Day ; Period 7 Psych Class Key; Weekends (Friday, Saturday, Sunday) Most Sleep on Weekend Medium Sleep on Weekend Least Sleep on Weekend This graph shows the average amount of sleep each students received over the 35 days.
- 6. Naps 0 0.5 1 1.5 2 2.5 3 3.5 4 Sarah Anjana Jen Taylor Burke Taylor B Ariel Mia Jocelyn Shirina Nina Ann Tara Mallory Sophie Hours Students Names Average Hours Naps for Each Student This graph shows the average hours each person in the class gets of naps each day.
- 7. Sleep Dept Calculation 0 0.5 1 1.5 2 2.5 3 3.5 4 4.5 5 Monday - Thursday Friday - Sunday MinusHours Days Sleep Dept Total Average for Weekends vs. Weekdays http://www.thewhitenoisealbum.com/sleepdebtcalculator.needed.html Calculated sleep debt in the Psychology period 7 class. We should be having about 9 hours of sleep each night. On weekdays it’s shown that we are much more sleep deprived compared to on the average amount sleep received on the weekend; our sleep debt is lower.