NPR: 08-26-2007 Health & Science

Stories: 1) Stem-Cell Procedure Could Rebuild Heart Tissue 2) The Desert's Resourceful Survivors 3) DNA from Spit Helps Decode Lives of Early Settlers 4) Great Lakes Fluctuations Sometimes Extreme 5) FDA Suggests New Sunscreen Standards 6) Pesky and Not Picky, Bedbugs Make a Comeback