Here's why you need to know your true age...

Now this is interesting - especially to those the unpopular side of 40... ie the largest section of our population right now...

How to calculate your fitness age! This is different form your chronological age but seems to be a pretty good indicator of your current longevity. Might be worth a shot so you know what to change, amend, modify or restart... Takes a few minutes to go through it but interesting results - maybe post your results for others to see... scary! (I'm 20 years younger than chronology)