For example, one pre-registered study of 686 participants found that after exerting mental effort, people are likely to disengage and become less interested in exerting further effort. Decreased attention can also be described as a more or less decreased level of consciousness. In any case, this can be dangerous when performing tasks that require constant concentration, such as operating large vehicles. For instance, a person who is sufficiently somnolent may experience microsleep. However, objective cognitive testing can be used to differentiate the neurocognitive deficits of brain disease from those attributable to tiredness.The perception of mental fatigue is believed to be modulated by the brains reticular activating system (RAS).Fatigue impacts a drivers reaction time, awareness of hazards around them and their attention. Drowsy drivers are three times more likely to be involved in a car crash and if they are awake over 20 hours, is the equivalent of driving with a blood-alcohol concentration level of 0.08%. Primary vs secondary
In some areas it has been proposed that fatigue be separated into primary fatigue, caused directly by a disease process, and secondary fatigue, caused by more general impacts on the person of having the disease. Causes
Fatigue is a normal result of work, mental stress, anxiety, overstimulation and understimulation, jet lag, active recreation, boredom, lack of sleep or disease. Acute
Causes of acute fatigue include depression; chemical causes, such as dehydration, poisoning, low blood sugar, or mineral or vitamin deficiencies.
Potassium phosphate is a generic term for the salts of potassium and phosphate ions including:
Monopotassium phosphate (KH2PO4) (Molar mass approx: 136 g/mol)
Dipotassium phosphate (K2HPO4) (Molar mass approx: 174 g/mol)
Tripotassium phosphate (K3PO4) (Molar mass approx: 212.27 g/mol)As food additives, potassium phosphates have the E number E340. == References ==