... other situations like sleep disorders, i.e. sleep apnoea, chronic insomnia or medical conditions such as stress (Wilson, 2005). According to Wilson (2005), sleep deprivation can cause not only traffic accidents, but also medical conditions such as: obesity, type 2 diabetes, metabolic disorder, heart problems, dementia, psychiatric disorders such as depression and anxiety (Nature, 2005). Nature (2005) stated that sleep deprivation, is a serious concern for public safety due to all the accidents that have been cause due to lack of sleep. This essay will evaluate the basics of motivation for sleep and sleep deprivation with the following five perspectives: evolutionary, psychodynamic, behaviourists, cognitive and hierarchy of needs. This paper will also discuss the strengths and shortcomings, and the advantages and limitations, with the merit and my perspective of each perspective. Through evaluating these perspectives, it will be argued that the behaviourist and cognitive perspective will be the best to beat sleep deprivation. The evolutionary perspective started with Charles Darwin in 1859 by arguing that we, humans, evolved our behavioural tendencies because it helped us to survive and reproduce offspring (Burton, Western, & Kowalski, 2009). According to Burton et al. (2009) the psychological processes evolved via natural selection, which helps our ancestors to survive and reproduce. Sleep has a biological need and basis, which helped us to survive and reproduce......
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