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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.
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.
A 2018 review of over 900 adults found that those who engaged in regular physical activity had better sleep quality. A review of studies also found a connection between exercise and improved sleep ...
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]
Emotions play a key role in overall mental health, [1] and sleep plays a crucial role in maintaining the optimal homeostasis of emotional functioning. [2] [3] Deficient sleep, both in the form of sleep deprivation and restriction, adversely impacts emotion generation, emotion regulation, and emotional expression. [4]
A 2014 review of studies on the link between sleep debt and obesity also reported no association between short sleep duration and total energy expenditure. [ 14 ] A study of Gonnissen et al. (2012) showed that the desire-to-eat ratings were higher after a night of fragmented sleep in comparison to a normal night of sleep. [ 24 ]
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 ...
Walker's first book was Why We Sleep: Unlocking the Power of Sleep and Dreams (2017). [16] He spent four years writing the book, [17] in which he asserts that sleep deprivation is linked to numerous fatal diseases, including dementia. [18] The book became a Sunday Times bestseller in the UK, [19] and a New York Times Bestseller in the US. [20]