How I Sleep: The Data-Obsessed Doctor Who Can’t Function Without His Whoop

How I Sleep: The Data-Obsessed Doctor

Brian Levine, founding partner of CCRM, follows a strict daily regimen.

I look at my sleep parameters every single morning. I am at 1,194 days straight without interruption.

Levine developed this routine in medical school at NYU, where he had to maximize his time.

Residency was a great training ground. You learn what your body can do on little sleep but also what it can’t do on little sleep,

he says. Author's note: Doctor's sleep habits shaped by medical residency.

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New York Magazine New York Magazine — 2025-10-15