Discrete Mathematics/Functions and relations. This article examines the concepts of the function and the relation. A relation is any association or link between elements of one set, called the domain or (less formally) the set of inputs, and another set, called the range or set of outputs.
Sleep deprivation. Sleep deprivation is the condition of not having enough sleep; it can be either chronic or acute. A chronic sleep-restricted state can cause fatigue, daytime sleepiness, clumsiness and weight loss or weight gain. It adversely affects the brain and cognitive function.
In one 2005 study 6 aptly titled: Sleep loss: a novel risk factor for insulin resistance and Type 2 diabetes, the authors note that âsleep exerts marked modulatory effects on glucose metabolism.â Lack of sleep also decreases levels of the fat regulating hormone leptin while increasing the hunger hormone ghrelin.