Appropriately dressed first lady Laura Bush and Joyce Cullen, a heart disease survivor, sat side by side at the Red Dress Fall 2007 fashion show on Feb. 2, 2007, in New York. Ms. Cullen, of Kansas City, Mo., became a heart-health advocate after surviving a heart attack. She credits Mrs. Bush with saving her life: She recognized the symptoms only because Mrs. Bush had described them in an appearance two days before.