▁on ▁working ▁conditions ▁as ▁the ▁key ▁source ▁of ▁job ▁stress , ▁and ▁for ▁job ▁red es ign ▁as ▁a ▁primary ▁prevent ion ▁strategy . ▁In ▁the ▁ten ▁years ▁leading ▁up ▁to ▁ 2 0 1 5 , ▁workers ▁in ▁the ▁EU ▁and ▁affili ated ▁countries ▁have ▁seen ▁improvement ▁in ▁noise ▁expos ure ▁but ▁w ors ening ▁in ▁expos ure ▁to ▁chemical s . ▁Appro xim ately , ▁one - third ▁of ▁EU ▁workers ▁experience ▁tight ▁dead lines ▁and ▁must ▁work ▁quickly . ▁Those ▁in ▁the ▁health ▁sector ▁are ▁exposed ▁to ▁the ▁highest ▁levels ▁of ▁work ▁intensity . ▁In ▁order ▁to ▁meet ▁job ▁dem ands , ▁a ▁little ▁more ▁than ▁ 2 0 % ▁of ▁EU ▁workers ▁must ▁work ▁during ▁their ▁free ▁time . ▁Appro xim ately ▁one - third ▁of ▁EU ▁workers ▁in ▁lower - level ▁jobs ▁have ▁some ▁decision ▁latitude . ▁By ▁contrast , ▁about ▁ 8 0 % ▁of ▁man agers ▁have ▁significant ▁levels ▁of ▁latitude . ▁ ▁General ▁working ▁conditions ▁that ▁indu ce ▁occup ational ▁stress ▁may ▁also ▁be ▁aspects ▁of ▁the ▁physical ▁environment ▁of ▁one ' s ▁job . ▁For ▁example , ▁the ▁noise ▁level , ▁light ing , ▁and ▁temperature ▁are ▁all ▁components ▁of ▁one ' s ▁working ▁environment . ▁If ▁these ▁factors ▁are ▁not ▁ade qu ate ▁for ▁a ▁successful ▁working ▁environment , ▁one ▁can ▁experience ▁changes ▁in ▁m ood ▁and ▁ar ous al , ▁which ▁in ▁turn ▁creates ▁more ▁difficulty ▁to ▁successfully ▁do ▁the ▁job ▁right . ▁ ▁Work load ▁ ▁In ▁an ▁occup ational ▁setting