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Lack of sleep has a significant impact on cognitive and physical performance, especially in endurance sports. Long-term sleep deprivation was shown to affect neurobehavioral function, including hallucinations and reduced reaction times, in a study of ultramarathon runners.
Sleep plays a vital role in regulating metabolism and appetite. When sleep deprived, the metabolic system will be out of balance, which will ultimately affect the dietary choices people make. Teens who are sleep deprived crave more carbohydrates. Sleep deprivation is a risk factor for obesity among young adults. [7] [medical citation needed]
These impacts range in severity and it is important to be aware of the increased risk of health issues that may arise due to the stress-sleep cycle. Many of the physical impacts of stress overlap with the physical impacts of sleep deprivation, including short-term impacts like fatigue and headaches, and long-term impacts like high blood ...
Other aspects of sleep health have been associated with obesity, including daytime napping, sleep timing, the variability of sleep timing, and low sleep efficiency. However, sleep duration is the most-studied for its impact on obesity. [124] Sleep problems have been frequently viewed as a symptom of mental illness rather than a causative factor.
Chronotype can affect how sleep deprivation influences mood. Those with morningness (advanced sleep period or "lark") preference become more depressed after sleep deprivation, while those with eveningness (delayed sleep period or "owl") preference show an improvement in mood. [62] Mood and mental states can affect sleep as well.
Why We Sleep: The New Science of Sleep and Dreams (or simply known as Why We Sleep) is a 2017 popular science book about sleep written by Matthew Walker, an English scientist and the director of the Center for Human Sleep Science at the University of California, Berkeley, who specializes in neuroscience and psychology.
This makes understanding the effects of sleep deprivation very important. Many studies have been done from the early 1900s to document the effect of sleep deprivation. The study of REM deprivation began with William C. Dement around 1960. He conducted a sleep and dream research project on eight subjects, all male.
Sleep apnea (or sleep apnoea in British English; /æpˈniːə/) is a sleep disorder characterized by pauses in breathing or instances of shallow or infrequent breathing during sleep. Each pause in breathing, called an apnea, can last for several seconds to several minutes, and may occur 5 to 30 times or more in an hour.