Former Olympic gymnast Mary Lou Retton battled a “rare” illness ... McKenna noted that the former Olympian does not have health insurance. “My amazing mom, Mary Lou, has a very rare form ...

Mary Lou Retton became a true American hero while still a teenager, scooping up a spectacular gold in the individual all-around competition at the 1984 Los Angeles Olympics, at age 16. The price of such glories had to be paid later in life.