“While there are relatively few extreme introverts or extroverts, most of us lean in one direction or the other. If we lean more toward introversion, we'll generally prefer less social activity than more extroverted people. One inclination is not 'better' than another, but our culture can make it seem as if extroverts have a social advantage.”

American physician, former vice admiral

Vivek Hallegere Murthy is an American physician and former vice admiral in the United States Public Health Service Commissioned Corps. He served as the 19th and 21st surgeon general of the United States from 2015 to 2017 and again from 2021 to 2025. He served under Presidents Barack Obama, Donald Trump, and Joe Biden. Murthy is the first surgeon general of Indian descent, and during his first term he was the youngest active duty flag officer in federal uniformed service.