Scientists from Michigan State University found that lack of sleep significantly impairs a person’s ability to maintain attention and follow instructions. However, neither coffee nor a nap can fully compensate for these effects. It has been reported Speech.
Psychologists conducted an experiment: In the evening, participants were asked to perform various cognitive tasks, and then they were randomly sent home to sleep or left awake in the lab all night. Participants who were allowed to sleep returned in the morning and successfully completed the tests.
People who were sleep deprived were more likely to make mistakes while running the algorithm. The scientists gave the example of making the cake from memory: Lack of sleep would increase the risk that participants would forget to add eggs or add salt twice.
Lack of sleep also worsened participants’ attention span. They were asked to watch the computer screen for half a second and press a button when a red dot appeared. People who were sleep deprived were more likely not to notice it.
The scientists then found that caffeine improved the attention span of sleep-deprived participants to nearly normal. Moreover, caffeine increased the attention of those who were not sleep deprived. But it did not reduce the number of errors in the execution of the algorithm in any group. Short naps of 30 to 60 minutes from 4am to 6am also did not improve participants’ performance.
The scientists concluded that there is no way to compensate for the lack of sleep. Caffeine may make a person more alert, but it probably won’t help with tasks that require complex thinking. A nap may improve health, but not performance.
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