A black and white picture of a shirtless Brian Dietzen doing a one handed push-up with two weight in his hands

Strong Stomach

This scientist has a secret. Underneath that ordinary lab coat, assistant medical examiner Jimmy Palmer—played by Brian Dietzen—has some seriously amazing abs!

Watch met up with the NCIS star in Los Angeles, where he shared his hard core fitness routine. Here's his go-to ab exercises for maintaining a killer physique.

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