What is Sleep? We spend a significant portion of our days and our lives sleeping. It might be the activity that we spend the most time on. But what is it? It is one of those aspects of life that we are so used to that we give little thought to. However, sleep is mentioned as one of the core pillars of a healthy lifestyle alongside other elements such as proper nutrition and exercise. Sleep quality and duration have impacts on work stress, general satisfaction with life, and subjective accounts of health and well-being. The importance of sleep is perhaps best appreciated when its absence is felt. There are significant adverse effects on physical, mental, and overall well-being when one is sleep-deprived. Sleep deprivation is affected by the time slept and the quality of sleep. It plays a significant role in determining various aspects of personal well-being.  While much is known about sleep's effects and its extensive role in determining health, defining what sleep is and why it ...