March 13, 2009 4:11 pm Don't Let Arthritis Prevent Exercise Experts say that activity can benefit patients with both arthritis and heart disease, even though they may avoid exercise for fear of inflaming their arthritis pain. US & World Videos 9:55 Single mom sobs after landing dream job thanks to Pennsylvania Women Work 10:28 Family receives emotional surprise after daughter's cancer battle 3:48 Viral therapy dogs jump into action after tragic D.C. plane crash 0:28 ‘There was a collision': Air traffic control recording captures moment of crash 3:30 Witness describes seeing plane in moments before it crashed
