Have fitness questions? Fitz has your answer. Our ThatsFit.com fitness expert -- and now your own virtual personal trainer -- will help you get fit, increase your overall health and do it in a fun way. Drop your questions here in the Comments section below and we'll choose two per week to publish on That's Fit! Learn more about Fitz here.

Q. How much does age play a factor in fitness? I understand that the older I get, the harder I may have to work to keep my figure. But is it possible to have the body of my 20s again, without working out being my career! Janice.

A. Hola chica, great question! There are a few factors that change you body as you age, but I see no reason you couldn't have an even better body than you had in your 20s. For the most part, you are what you are, and your structure only varies slightly over the years. . Hips may widen during pregnancy, but for some girls that may be a lovely thing! Skin may change do your environmental choices and elasticity loss, but your body is what it is.

If you're looking to be thinner, you'll always have the ability to burn more calories and consume less. If you're looking to be more curvy or strong, you can always strength train. Stretching is a great option for creating super posture. I love my job as a fitness trainer, because as I tell my clients, "short of crushing bones...there's nothing we can't accomplish". You too, can create your best body once again. Working out does not have to be your life, but if you want to look great it has to be a priority. Let me know how it goes! Fitz

Q. Dear Fitz. I can't afford to buy a treadmill or even a weight set to get in shape at home. Can I use stuff around the house as a substitute? Not a lot of cash but a lot of commitment. Dave

A. I love it Dave! You are a dream for me, and you're about to see success and fast. One of the things I try to ensure when I train folks is that they learn how their body works. If they know that, they'll be able to exercise in both the fanciest gyms and the desert. Lots of money and equipment is fine, but what matters most is your knowledge and desire.

In order to be fit you should eat well, have strength, stamina, and flexibility. For strength I recommend using your own body weight, most people will rarely lift anything heavier. Try lunges, squats, dips, push-ups, crunches, and planks. All equipment free! For cardio I suggest getting one good pair of running shoes for walking, jogging, jumping jacks, and jumping rope. Stretching is cool with equipment, but definitely doable without it.

I encourage you to learn how your body works. For example, if you know that to work your chest you need to push forward with both arms....you can push anything in the world and work your chest! It's easy. Get a great book, read lots of magazines, or come back in a few weeks to view my Move of the Week video pod-casts here at That's Fit. Take the information you gain and continually try to challenge yourself. You'll be Uber Dave in no time!

Punches & Kicks,

Fitz

Note: The content presented in this Q. & A section is for informational purposes only and should not be viewed as medical advice or substitute for professional medical care.