Blood has a seemingly impossible job: it must flow continuously and smoothly for an entire lifetime, but quickly form a blood clot when bleeding... My WebMD Sign In, Sign Up My WebMD Sign In
'I wish them both the best': Tom Cruise's first wife Mimi Rogers expresses her sympathy over his split with Katie Holmes. Published: 17:33 EDT, 7 August 2012 | Updated: 18:48 EDT, 7 August 2012.
Radio host Tom Joyner and his wife Donna Richardson Joyner arrive at the 2008 MusiCares Person of the Year Dinner Febuary 08, 2008 at the Los Angeles Convention Center, Los Angeles, California. AFP PHOTO/VALERIE MACON (Photo credit should read VALERIE MACON/AFP/Getty Images)