mental confusion

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Avoid driving at night and straight after lunch, when many people experience decreased alertness.
A couple of altered lifestyle factors may contribute, as well: The night shift is often occasion for a sedentary work style, and decreased alertness might even affect daytime activity.
The study concluded that time of day is a significant indicator of decreased alertness and performance and that work schedule variables are important determinants of job performance, including safety-sensitive tasks.
The baby's blood sodium becomes diluted causing low body temperatures, bloating, decreased alertness, and even seizures.
Decreased alertness in midafternoon appears to be a natural phenomenon-simply part of the circadian rhythms that affect us all.
The symptoms include forgetfulness and poor concentration, a slowing of motor functions, decreased alertness, apathy, withdrawal, mood swings, diminished interest in work, and loss of sex drive.
Low energy levels, in turn, can lead to decreased alertness, pessimism, irritability, and an overall sense of disengagement, which can have a negative impact on employee health, productivity, and performance.
It was shown that stopping daily caffeine consumption produces changes in cerebral blood flow velocity and quantitative EEG that are likely related to the classic caffeine withdrawal symptoms of headache, drowsiness and decreased alertness.