By Kim Brooks – Chicago Magazine

A revolutionary lab at Northwestern Medicine promises to unlock the secrets to longevity.

We’re all going to die. On this front, there’s been little progress. But when? And how? And in what kind of physical condition will we spend our final years?

These are the thoughts running through my head as I ride the elevator to the 21st floor of the Lavin building on Northwestern Medicine’s Streeterville campus. I enter the elegant but sterile waiting room of the Potocsnak Longevity Institute, where I am to undergo a series of tests to measure my “biological age,” a favorite term of longevity experts. It’s a gauge of the wear and tear our lives have wreaked on our bodies at a molecular and cellular level.

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