Final answer:
Sleep deprivation can lead to impaired judgment, decreased memory retention, and reduced focus and attention.
Step-by-step explanation:
The cognitive effects of sleep deprivation include impaired judgment and decision-making, decreased memory retention, and reduced focus and attention.
Sleep deprivation can lead to decreased mental alertness and cognitive function.
Research has shown that the most severe effects of sleep deprivation occur when a person stays awake for more than 24 hours or repeatedly sleeps for fewer than four hours a night. These effects can include irritability, distractibility, and impairments in cognitive and moral judgment.