Librarians 'suffer most stress'

"Working in libraries has been commonly thought a stress-free job
Fighting fires may sound taxing, chasing criminals demanding, but a new study says that working in library is the most stressful job of all.
Librarians are the most unhappy with their workplace, often finding their job repetitive and unchallenging, according to psychologist Saqib Saddiq.

Librarians complained ... that their skills were not used and how little control they felt they had over the career."

source: BBC