▶ Your Answer : In this given set of materials, there is some discrepancy between the views of the lecturer and the author over the issue of why people sleep. With three cogent explanations, the lecturer raises objections to the alleged reasons of people's sleeping presented in the passage. To start with, the lecturer debunks the author's first conjecture since there are several contradictory evidence that humans' sleeping is little related to memory improvement. To elaborate in detail, the lecturer claims that an experiment might shown that people who had little or no slept REM sleep still had good memory. This is in direct opposition to the author's cliam that sleeping enhances memory functions. In addition, the lecturer also indicates dissent over the author's idea on body restoration. The lecturer sounds convinced that the author is making a manifest error about the role of sleep as a means of conserving energy since people mostly gain their energy by eating food. However, the author clarifies that the reason why people sleep is that people save their energy during sleeping. Thirdly, the lecturer goes on to expound that the author's s final point on releasing toxin during sleeping is flawed. The lecturer mentions that people mostly have different toxin in their body. Moreover, the experiement between the sleep and the amount of toxin should be processed more to appear exact results. Therefore, with three convincing explanations the lecturer posits, the author's assumptions are all rendered groundless. |