7.Police Officer
To protect and serve the public all night and day, many police departments use rotating shifts. This ensures 24-hour coverage without singling out some officers for holidays or the worst hours. But rotating shifts have challenges of their own — it’s impossible to adapt to any one schedule. Alternating between day and night shifts is more problematic than switching between a day shift and an afternoon shift.
8.Medical Intern
Medical students may get used to cramming for exams, but the all-nighters don’t end at graduation. As intermediate-level hospital staff, some residents are allowed to work in-house duty for up to 24 hours in a row. (They must have at least 14 hours free of duty afterward.) Studies show medical residents are twice as likely to crash their cars after a long shift. They’re also more likely to make mistakes in diagnosing patients.