President Shimon Peres collapsed on Saturday night during a question-and-answer session for young executives at the Rabin Center in Tel Aviv.
The 86-year-old president fainted and collapsed on the lectern during the last question. He recovered consciousness after a few seconds, at which point he was taken to a side room where Magen David Adom medics treated him.
The president's personal physician later rushed to the scene.
After the incident, people close to Peres told Haaretz that he was feeling "good," that he left the hall walking, and that he had a protracted debate with his aides about whether to go to hospital - which the president refused to do.