. ▁If ▁the ▁individual ▁has ▁a ▁very ▁high ▁toler ance ▁( is ▁relatively ▁inv ul ner able ), ▁an ▁inten se ▁str essor ▁may ▁not ▁lead ▁to ▁a ▁mental ▁or ▁physical ▁problem . ▁However , ▁if ▁the ▁str essor ▁( e . g ., ▁high ▁work load , ▁difficult ▁cow ork er ▁relationship ) ▁out st ri ps ▁the ▁individual ' s ▁di ath esis , ▁then ▁health ▁problems ▁may ▁ens ue . ▁ ▁Job ▁dem ands - resources ▁model ▁In ▁the ▁job ▁dem ands - resources ▁model ▁model ▁der ives ▁from ▁both ▁conservation ▁of ▁resources ▁theory ▁and ▁the ▁D CS ▁model . ▁Dem ands ▁refer ▁to ▁the ▁size ▁of ▁the ▁work load , ▁as ▁in ▁the ▁D CS ▁model . ▁Resources ▁refer ▁to ▁the ▁physical ▁( e . g ., ▁equipment ), ▁psych ological ▁( e . g ., ▁the ▁inc umb ent ' s ▁job - related ▁skills ▁and ▁knowledge ), ▁social ▁( e . g ., ▁support iveness ▁of ▁super vis ors ), ▁and ▁organiz ational ▁resources ▁( e . g ., ▁how ▁much ▁task - related ▁dis cret ion ▁is ▁given ▁the ▁worker ) ▁that ▁are ▁available ▁to ▁satisf actor ily ▁perform ▁the ▁job . ▁High ▁work loads ▁and ▁low ▁levels ▁of ▁resources ▁are ▁related ▁job ▁stra in . ▁ ▁Fact ors ▁related ▁to ▁the ▁ab ov ement ioned ▁psych ological ▁theories ▁of ▁occup ational ▁stress ▁▁ ▁Ro le ▁conflict ▁involves ▁the ▁worker ▁facing ▁in compatible ▁dem ands . ▁Work ers ▁are ▁pulled ▁in ▁conflic ting ▁directions ▁in ▁trying