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.
Sleep Deprivation Causes Acne. When you sleep late, youâll notice that your skin actually secretes more sebum, and this probably explains why it results in new acne. Again, from what Iâve read, a lack of sleep will promote stress and that causes an increase in the substance cortisol in the body.