Sleep Apnea
EKG technicians are required to be in attendance at a hospital twenty-four hours a day, seven days a week.  This means that a night shift is oriented and worked in the hospital even by EKG technicians.  In the case of the technicians I interviewed, the night shift was longer than the day shift.  This is to make more convenient times for the people working the day time to have better work hours and make it home for dinner.  The performance ability seems to have a downward trend when adding all of the factors included in the night shift.  People, even technicians, are more tired at night time and are less able to perform.  As the shifts are also longer at night as well, this makes the performance level go at an even steeper rate.  The shifts that take place for the night shift are often ten hours long and are longer than the average working shift of eight hours long.  Sleep apnea is a problem among people working the night shift.  They work longer and later hours than the people working the day shift causing them to be extremely exhausted and less able to do their job.  Sleep apnea is caused by a lack of sleep of a person and causes them to have symptoms such as slower rates of breathing and lack of breathing at some points.  This causes less oxygen into the blood stream.  A lack of oxygen in the blood stream causes people to feel extremely exhausted and unable to function as quickly or as well as people who have much more oxygen in their bloodstream.