Short-term total sleep deprivation can lead to a significant drop in cognitive performance, roughly equating to a loss of five to ten IQ points after just one night without sleep. While individual responses to sleep loss vary, the implications are clear: pulling an all-nighter before an important exam may hinder your performance more than you realize. The long-term effects of chronic sleep deprivation, however, remain less understood, highlighting the complexity of sleep's role in cognitive function.
