ID3 vTOPE NPRTCOM Jon HamiltonTALB Morning EditionTIT2 " Is a Brighter Earth a Better One?TCOP 2006TRCK 7TCON Your HealthCOMM nprComment Humans have spent hundreds of years seemingly intent on turning night into day. But a brighter world affects how we sleep, socialize and possibly even our health.TPE1 NPRTYER 2006 P , ^k$ 8