Mandela recently underwent a routine test in Johannesburg.
Bizos told newsmen in Johannesburg after visiting Mandela that though “he was doing okay”, his memory was not what it used to be, adding that he seemed to have forgotten that some of their mutual friends had died.
“Unfortunately, he sometimes forgets that one or two of them had passed on. His face is blank when you tell him, for instance, that Walter Sisulu and some others are no longer with us,” he said.
Bizos said though Mandela was aware of current political events, he would not comment on them.
“If he was asked: ‘What do you think about this or that issue?, his inevitable response was: ‘Go ask my president’. He never wanted to second guess his successor,” Bizos said.
Mandela was released from a Pretoria hospital on Sunday after undergoing a routine test and medical check-up over the weekend. He was said to be recovering at home in Houghton, Johannesburg.