, ▁dealing ▁with ▁work load ▁can ▁be ▁stress ful ▁and ▁serve ▁as ▁a ▁str essor ▁for ▁employees . ▁There ▁are ▁three ▁aspects ▁of ▁work load ▁that ▁can ▁be ▁stress ful . ▁ ▁Quant itative ▁work load ▁or ▁over load : ▁Having ▁more ▁work ▁to ▁do ▁than ▁can ▁be ▁accomplished ▁comfort ably . ▁ ▁Qual itative ▁work load : ▁Having ▁work ▁that ▁is ▁too ▁difficult . ▁ ▁Under load : ▁Having ▁work ▁that ▁fails ▁to ▁use ▁a ▁worker ' s ▁skills ▁and ▁ab ilities . ▁ ▁Work load ▁as ▁a ▁work ▁demand ▁is ▁a ▁major ▁component ▁of ▁the ▁demand - control ▁model ▁of ▁stress . ▁This ▁model ▁suggests ▁that ▁jobs ▁with ▁high ▁dem ands ▁can ▁be ▁stress ful , ▁especially ▁when ▁the ▁individual ▁has ▁low ▁control ▁over ▁the ▁job . ▁In ▁other ▁words , ▁control ▁serves ▁as ▁a ▁buffer ▁or ▁protect ive ▁factor ▁when ▁dem ands ▁or ▁work load ▁is ▁high . ▁This ▁model ▁was ▁expanded ▁into ▁the ▁demand - control - support ▁model ▁that ▁suggests ▁that ▁the ▁combination ▁of ▁high ▁control ▁and ▁high ▁social ▁support ▁at ▁work ▁buff ers ▁the ▁effects ▁of ▁high ▁dem ands . ▁ ▁As ▁a ▁work ▁demand , ▁work load ▁is ▁also ▁relevant ▁to ▁the ▁job ▁dem ands - resources ▁model ▁of ▁stress ▁that ▁suggests ▁that ▁jobs ▁are ▁stress ful ▁when ▁dem ands ▁( e . g ., ▁work load ) ▁exceed ▁the ▁individual ' s ▁resources ▁to ▁deal ▁with ▁them . ▁ ▁Long ▁hours ▁ ▁According ▁to ▁the ▁U . S . ▁Bureau ▁of ▁Labor ▁Statistics ▁in ▁