For his recent heart operation at New York's Columbia-Presbyterian Hospital, former US President Bill Clinton had no anaesthetic.
"I didn't have any anaesthesia or any sedatives. I just had this stent put in and I asked if I could watch it on the screen while they were fixing me. So, I think that I was able to make a quicker comeback because I didn't go under," Daily Express quoted Clinton, as saying.
"The next day I walked two miles in the cold right before the snow in New York," he added.
Clinton, who was hospitalised on February 11 after complaining of chest pain, was found to be serious after an electrocardiogram revealed that a region of his heart was not getting the blood it needed.
He had undergone a quadruple bypass surgery in the hospital six years ago, and one of those bypass channels was found totally blocked.
Within 90 minutes of walking into the hospital, the former President had two new stents in his heart, and the 63-year-old had dodged another scare.
Clinton, who is the UN special envoy to Haiti, had earlier blamed his most recent heart problem on a lifetime of bad eating, poor stress management and lack of sleep.
"Once the Haiti earthquake happened I didn't sleep much for a month, and that probably accelerated what was already going on with this failing vein," Clinton said.