Lack of Sleep Increases Risk of Death, May Cause Cancer, Diabetes and Stroke Say Doctors
Whether you delay sleeping because of video games, or browsing your phone too late at night, sleep deprivation could have some very serious side effects.
Stages of Sleep Deprivation
What are the stages of sleep deprivation?. We know that there are four stages of sleep deprivation: Non-REM (NREM) sleep stages 1,2, 3 and REM sleep. #sleepdeprivation #sleepissues #stageofsleep
--- From a study by Pilcher and Walters in 1997 that individuals who were given 8 hours of sleep, performed significantly better than those who were deprived for 24 hours on the Watson Glaser Critical Thinking Appraisal. Those who were deprived of sleep rated themselves higher than in their reflected testing. --- Pilcher, J. J., Walters, A. S. (1997). How Sleep Deprivation Affects Psychological Variables Related to College Students Cognitive Performance. Journal of American College Health.
Cognitive Effects 2
This study showed individuals that were tested on a visual discrimination task with 30 hours of sleep deprivation, continued to perform the same, even with 2 days of recovery sleep. Those who were not deprived showed improved performance daily. The picture shows the importance of our sleep stages to our memory. Our rem cycles and slow-wave sleep. Hershner, S., Chervin, R. (2014). Causes and consequences of sleepiness among college students. Nature and Science of Sleep, 73
--- In this study, sleep restriction was suggested to alter glucose metabolism, upregulate appetite, and decrease energy expenditure. These present higher risks to individuals for developing obesity or diabetes. --- Knutson, K. L., Spiegel, K., Penev, P., Cauter, E. V. (2007). The metabolic consequences of sleep deprivation. Sleep Medicine Reviews, 11(3), 163–178
Physical Effects 2
Sleep is important for Homeostasis. In this experiment, small decreases in temperature were noted by day 2 after a single night of deprivation, showing that sleep deprivation disrupts the regulation of body heat. Meney, I., Waterhouse, J., Atkinson, G., Reilly, T., Davenne, D. (1998). The Effect of OneNights Sleep Deprivation on Temperature, Mood, and Physical Performance in Subjects with Different Amounts of Habitual Physical Activity. Chronobiology International, 15(4), 349–363.
A Turkish study involving 60 undergraduate volunteers with various levels of sleep deprivation revealed that a negative impact on mood by sleep deprivation depended on the circadian rhythm and sleep-wake habits of the subject. --- Selvi, Y., Gulec, M., Agargun, M. Y., Besiroglu, L. (2007). Mood changes after sleep deprivation in morningness. eveningness chronotypes in healthy individuals. of Sleep Research, 16(3), 241–244.