In highschool, at 16 years old, but dropped it few weeks later. Got serious at 38 years old, when I started reading and learning more about Bodybuilding.

I love that, once you know what you have to put in it to have progress, you get progress. It is very frustrating and confusing in the beginning, but once you start understanding it, you get to learn and know more and more, and to notice and appreciate the progress.