<prompt> Translate the following text to EnglishKwa sababu ya uwezekano wa kupoteza miaka mitano ya maisha kwa vifo vinavyohusiana na PM, bila kujali umri wa mtu anayekufa, hii inaongoza kwa VSL ya chini kwa idadi ya watu vijana.  <response>: Since we assume that there is a 5-year loss in life years for a PM related mortality, regardless of the age of person dying, this necessarily leads to a lower VSL for younger populations. 