Sleep times, average

Species Average sleep Time (total hours per day)... 

Several studies have examined the total sleep times obtained by air traffic controllers (ATC) in different settings. In one Federal Aviation Administration (FAA) study of shift schedules, results showed that controllers averaged about 8 hr of sleep prior to an afternoon or midday shift (20) and about 7.5 hr of sleep before a day shift. The study also showed that controllers obtained a total of about... 

In summary, across all of these examples, any type of nonday or nonstandard work schedule can result in an average total sleep time that is significantly below comparative baselines and demonstrates both the acute and cumulative sleep debt that results from RTC Ops. 

Adults (immediate-release [IR] tablets, chewable tablets, and oral solution) Individualize dosage. Administer in divided doses 2 or 3 times/day, preferably 30 to 45 minutes before meals. Average dose is 20 to 30 mg/day. Dosage ranges from 10 to 15 mg/day to 40 to 60 mg/day. Patients who are unable to sleep if medication is taken late in the day should take the last dose before 6 pm. 

Local irritation and mild central nervous system symptoms were reported in a questionnaire survey, but no abnormalities were seen in a health examination, clinical chemistry, or haematological parameters among 175 xylene-exposed employees, whose exposure to xylene was on average 21 ppm [87 mg/m ] (Uchida et al., 1993). Minor effects on body sway, reaction times or overnight sleep pattern were observed after experimental inhalation exposure to xylene (200 ppm [870 mg/m ], 5 h per day for six days) (Laine et al., 1993). 

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