Dr. Andrew Brunswick has watched too many people run out of time.

As a neurosurgeon, he has spent nearly 15 years inside operating rooms in Los Angeles working through the night to save lives—sadly, sometimes without success. What that job has given him, beyond surgical precision and medical skill, is perspective.

"For almost 15 years I’ve spent my days—and many nights—with people at the most fragile moments of their lives," Brunswick, 45, told Newsweek . "Being in the operating room and caring for patients who may not survive the day, or the week has fundamentally shaped the way I see time, attention, and what actually matters."

Brunswick has quietly built an online audience under the Instagram handle @itsbrainsurgery, where his reflections on mortality and meaning have begun to re

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