Wakefulness
Wakefulness
Wakefulness (/ˈweɪkfʊlnɪs/), is the state of being conscious and not sleeping. It is a fundamental aspect of human life and is influenced by various factors such as circadian rhythm, sleep deprivation, and certain medical conditions.
Etymology
The term 'wakefulness' originates from the Old English word 'wacian', which means 'to become awake'.
Definition
Wakefulness is defined as the period of time that a person is awake and alert. It is the opposite of sleep, a state of unconsciousness from which a person can be aroused. During wakefulness, a person is able to process information, interact with the environment, and carry out various activities.
Factors Influencing Wakefulness
Several factors can influence wakefulness, including:
- Circadian rhythm: This is the body's internal clock that regulates the sleep-wake cycle. It influences the timing of sleep and wakefulness.
- Sleep deprivation: Lack of sleep can lead to increased wakefulness, but it can also cause fatigue and other health problems.
- Medical conditions: Certain medical conditions, such as insomnia, sleep apnea, and narcolepsy, can affect a person's wakefulness.
Related Terms
- Alertness: This is a state of active attention by high sensory awareness such as being watchful and prompt to meet danger or emergency, or being quick to perceive and act.
- Consciousness: This is the state of being aware of and able to think and perceive one's surroundings, thoughts, and feelings.
- Vigilance: This is the state of staying alert to detect possible dangers.
External links
- Medical encyclopedia article on Wakefulness
- Wikipedia's article - Wakefulness
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