The demandsofnursingare toogreatfor a lot ofpeople.
His newjobmakesa lot of demandsonhim(= he has toworkvery hard).
Thelonghoursand thephysicaldemands of theworkaredrivingpeopleaway from theprofession.
Teacherscomplaintthat theysimplycan'tsatisfytheenormousdemandsplacedon them.
Manystrugglewith theconflictingdemands ofworkandfamily.