A longevity and sports medicine doctor who completed 15 Ironmans shares his workout routine. It includes a run-commute.

Dr. Jordan Metzl, a sports medicine doctor, says exercise is a key component to longevity.

Jordan Metzl

• Dr. Jordan Metzl is a sports medicine doctor practicing in New York City.
• He said regular exercise is one of the most important parts of longevity.
• He strength trains in the morning and runs home after work.

From a very young age, Dr. Jordan Metzl knew that playing sports energized and helped him focus. It wasn't until years into his career as a sports medicine...