active adjective (GRAMMAR) âº grammar [ not gradable ] describing a verb or sentence in which the subject is the person or thing that does what is stated: In Alex gave me a gift, the verb give is active, and in I was given a gift by Alex, give is passive.
A single night of sleep deprivation can impact a person's ability to coordinate eye movements with steering. Share: Results of the study showed that, in all drivers, sleep deprivation adversely affected their ability to coordinate eye movements when steering.
Sleep deprivation is the condition of not having enough sleep; it can be either chronic or acute. A chronic sleep-restricted state can cause fatigue, daytime sleepiness, clumsiness and weight loss or weight gain. It adversely affects the brain and cognitive function. However, in a subset of cases sleep deprivation can, paradoxically, lead to increased energy and alertness and enhanced mood; it has even been used as a treatment for depression (see below). Few studies have compared the effects of acute total sleep deprivation and chronic partial sleep restriction.