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. Dear Fitz. I'm trying to lose about 100 pounds and am having no luck. Seems like all of my teeny friends lose weight whenever they want. Is my metabolism way slower? Angie

A. Just the opposite is true Angie. It is waaaaaay easy for a larger person with lots of extra fat to lose weight than a person with just a little. For the most part, we all burn about 10 calories per day for each pound of body weight we have. A 120 person can consume 1200 a day without gaining weight (if they are not exercising). A 220 pound woman burns about 2200 a day just to maintain her weight. If she wanted to lose one pound (3600 calories) in three days....she could drop her consumption down to 1000 calories a day and do it. The 120 pound girl has to work infinitely harder. By cutting calories, she'd have to eat about 600 calories, which is absolutely not healthy. And she would have to go burn off 600 calories through exercise.

Your extra weight is just that. Weight. You're body burns lots of calories while struggling to carry all of that extra meat around. Sounds rough, but it's true. Go pick up two 25 pound dumbbells. Those 50 pounds are really heavy. Double that and that's what you're body is working to maintain. The reason you're not losing weight is that you're probably continuing the same poor eating and exercise habits that lead you to gain an extra 100 pounds in the first place. Maintaining your weight takes effort. Stop seeking out lots of food or high calorie food. You're probably doing one or both of those things. And just and FYI.....Hypo-thyroidism is very rare. The problem is more than likely not medical, it's a problem with your lifestyle.

Get to work Angie. Huff, Puff, and be particular about what you put in your mouth. You can do this! Fitz

A, Miss Fitzness. My husband won't go to the gym with me. He says our workouts are too different. But, I really want to go with him! What do ya suggest? Melissa

Melissa. That's annoying. I remember when I first started dating my husband, he didn't want to go for a walk with me. He was like "I'm not holding hands, and going for a walk. That's dumb." Now mind you, I was embedded in a full blown kickboxing fighting career at the time, and frequently asked him to do that type of training with me too. Nope. Not a chance. He's built like he belongs on the cover of Men's Health magazine, and he's a police officer too. So, there was certainly no threat of him looking feminine by training with me. He just didn't want to.

I think the deal is that both your man and mine don't want to be in any sort of competitive environment with us. Of course, you and I look at working out together as fun. The boys see it as a stressor. Maybe it cramps their style. I don't know. But I do know this. We can exercise at the same time. We just do our own things. What I suggest to you is to resolve to GO to the gym together. Walk through the door together, wish each other a good workout, and go your separate ways. This way,.you're technically together. He won't feel any stress, and you can get the occasional wink from across the room. Go sit in the sauna together when you're done. This compromise works for us, and hopefully it will work for you too. Let me know how it goes!

Punches & Kicks,