They include drowsiness, dizziness, and decreased alertness and concentration. Users report feelings of relaxation, sharpness, calmness, and alertness. Its alertness and attentiveness make it a good hunting companion. Dementia and delirium are the cause of the confusion, orientation, cognition or alertness impairment. Arousal is important in regulating consciousness, attention, alertness, and information processing. The effects are manifested in alertness, arousal, and readiness for action. The thalamus helps regulate consciousness and alertness. It is a stimulant, inducing slight dizzines followed by euphoria and alertness. These include high intelligence, agility, alertness, reliability, strength, and endurance. The 20-minute nap increases alertness and motor skills. In fact, binge-watching could lead to an increased cognitive alertness, therefore impacting sleep. Additional measures of alertness, cognitive performance, and mood were collected at fixed intervals. Power naps restore alertness, performance, and learning ability. There are four major determinants of cognitive performance and alertness in healthy shift-workers. Their suspicion of strangers, alertness, agility, and strength make them formidable guard dogs.