why sleep
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CP 1 (Productivity + Reduce Accident)
Elaboration: Lack of sleep reduces workplace productivity
Examples: "Lack of sleep can be expensive: The National Commission on Sleep Disorders estimates that sleep deprivation costs $150 billion a year in higher stress and reduced workplace productivity."
Elaboration: High-risk careers associated with little sleep.
Examples of high-risk careers: Doc, Truck Drivers. (If surgeon does not get sufficient sleep, they might leave operation tool in patient's body during op. Drivers may fall aslp while driving the trucks and hence lead to accident.
Concluding Point: We need sleep to ensure high productivity.
CP 2 (Health)
Elaboration: Sleep appears necessary for our nervous systems to work properly. (If we do not have enough sleep, our immunity system cant work and thus more vulnerable to illnesses.) (Expt had been done on rats. The rat's nervous system cant work properly when the rats does not get sufficient sleep)
Elaboration: Sleep also triggers the releases of growth hormones in children and young adults...