Ithinkitisnotsuitableforhighschoolstudentstostudytilllateatnight.Thefirstreasonisbecauseteenagersaresupposedtobesleepingforatleast8hoursaday.Secondly,iftheydonothaveenoughrest,itwouldbeharderforthemtopayattentioninclass;itwouldbeareallybadideatodothatasyouwillneedtodoalotmorerevisionyourselfifyoudidn’tlistenwhattheteachertoldyouduringlesson.Lastly,itwouldaffecttheirhealthiftheydidn’thaveenoughsleep,theyaremorelikelytocatchadiseaseastheirbodycouldaffordenoughenergytoprotecthimself.