Growing up in the ’70s, John Halamka was a bookish child with a penchant for science and electronics. He wore black horn-rimmed glasses and buttoned his shirts up to the collar, the New York Times reports. "I was constantly being called a geek or a nerd," he recalled, chuckling. Dr. Halamka grew up to be something of a cool nerd, with a career that combines his deep interests in medicine and computing, and downtime that involves rock climbing and kayaking. Now 47, Dr. Halamka is the chief information officer at the Harvard Medical School, a practicing emergency-ward physician and an adviser to the Obama administration on electronic health records.
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