If you don’t use it, you will most certainly lose it.

Run as fast as you can, jump as high as you are able to and push yourself daily.

Don’t just use it, push it!!! The most potent forces that affect aging have to do with behavior and lifestyle. The same lessons apply for learning and becoming an expert.

All of those sprints and intervals you did in college…. don’t stop now and don’t stop in your 50’s & 60's!

Joe Friel, author of Fast After 50, argues that the most potent forces that affect aging have to do with behavior and lifestyle…