Today, lack of sleep is a well-known phenomenon. Unfortunately, many questions remain unanswered regarding this idea. Fortunately, through much research, we have discovered some effects of lack of sleep on the human body and brain. In a few experimental studies, researchers have examined the effects of sleep deprivation on the brain itself. The results of these experiments show that lack of sleep affects brain chemistry. It also affects various areas of the brain such as connectivity and signaling, particularly in the hippocampus and frontal regions of the brain. Changing all of these areas affects our long-term memory function and decision-making. Sleep deprivation also affects how we deal with stress, our cognitive ability. Sleep deprivation also affects the brain by inhibiting brain connectivity (Verweij et. al. 2014). It also affects signaling in the brain (Vecsey, 2009). Other areas of the brain affected are the hippocampus and frontal regions (Vecsey, 2009; Thomas et. al. 2000). Changing all of these areas affects our long-term memory function and decision-making. (Vecsey, 2009; Thomas et al. 2000). Lack of sleep also affects our level of cognitive performance and how we deal with stress in our lives (Minkel et. al, 2014). Lack of sleep not only affects our brain, but also our mood (Bernier, 2009). With all of these effects, we can become moody, stressed, have difficulty remembering, and even make more poor choices than if we were getting enough sleep. We are doing various research on what happens to our brains when we don't get enough sleep. With all the data, we know how important it is to sleep. There are several unanswered questions, but the one that comes to mind is: why don't people get enough sleep? Since areas of the brain are affected due to lack of sleep, does the way our brain is affected lead to a cycle of sleep deprivation? What I mean is that we are so sleep deprived that we just continue on a cycle of lack of sleep..