Why health problems occur for call center agents working in night shifts? Mostly it happens because human body’s natural circadian rhythms cryingly tell that the concerned person should not be working when he or she should take sleep. Many of our physical and chemical roles keep fluctuating during different times of the day. Take for example; let me tell you something about cortisol concentration which changes daily. This peaks during the morning hours when glucose is needed for activity and reaches its low point late in the evening.
Core body temperature, serum potassium, and growth hormone vary at times during the day, as does urinary excretion of potassium, calcium, and inorganic phosphate. The efficacy of certain medications--insulin and antiepileptic drugs, for example-- changes with the time of day so that either greater or lesser quantities may be needed to obtain the desired therapeutic effects. In fact, one report concludes that every lab value and physiological measurement should be interpreted with regard to the circadian phase at which it was obtained.
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