It appears that Fidel Castro has cancer:

Cuba's leader Fidel Castro has cancer, N-TV TV station announced citing Brazilian newspaper Folha de São Paulo considered to be well informed about Castro's health.

According to the newspaper Brazil's President Luis Inacio Lula da Silva has been informed by Havana that Fidel Castro has a cancer formation in his stomach.

"It looks like we are losing our friend," the Brazilian newspaper reads citing Luis Inacio Lula da Silva. Even if he recovers from the stomach operation Cuba's leader most probably won't be able to run the country again, Folha de São Paulo comments.

Couldn't have happened to a more deserving man.  Guess that "outstanding" health care system in Cuba isn't going to do him much good.