Kayvon Tehranian was lifting weights at his gym on Sept. 10 when he passed out and hit his head on the floor. Somebody asked him to name the president, and he said Barack Obama.

Wishful thinking, maybe. But it was reason enough for another gym member to drive him to the nearest emergency room, San Francisco General Hospital, just in case. He had two CT scans, spent two hours at the hospital, and talked to a doctor for five minutes. The diagnosis? A concussion. He was sent home.

Read more at: https://www.sfchronicle.com/bayarea/heatherknight/article/Chiu-Wiener-take-on-SF-General-s-big-bills-13638812.php