Sure, age has everything to do with the year you were born, but it also has nothing to do with it. Confused yet? Here's the thing -- your driver's license may say one thing, but how you treat your body is an entirely different story. You can be a 20-year-old with the body of a 40-year-old or a 40-year-old with the body of a 20-year-old (I like that option much better. You too?) It's called your real age, and if you don't know yours, you should, and that's no joke.

Your habits make a big difference in how well you age. Things like smoking, not exercising, drinking, eating poorly and dealing with stress can wear down your body in a hurry -- and speed up your real age rapidly. Conversely, healthy habits like working out, eating well and maintaining a good home/work balance can make the numbers drop -- and the difference will be noticeable in your appearance. Take the real age test to find out where you stand, and take steps to reduce your numbers.

The thing is, you can't change when you were born, but you can change your real age by adopting healthier habits. And the sooner the better, because your real age doesn't lie.