Curious to know how celebrities squeeze fitness into their daily lives? Want to know the secrets of the stars? Bi-weekly our That's Fit fitness expert Fitz sits down with the celebs we want to know more about, and digs out their great and not-so-great methods to staying healthy.

Our featured celebrity this week is one of our very own That's Fit bloggers, Jacki Donaldson. Jacki has published and become the feature of more than 1,000 magazine and online articles. She's an eloquent writer who guides her readers towards healthier, more appreciative and joyful lives with ease.

Jacki is also a Breast Cancer Survivor. Jacki was diagnosed in November of 2004, when her two small sons were only three years old and 18 months, Soon after, Jacki endured a lumpectomy, radiation, chemotherapy and all of the great side effects that go along with it. Jacki lives in my neighborhood and approached me about personal training in April of 2006. I considered her a friend before this, but truly had no idea what an inspirational and fun person she would be to have in my life.

As I've cheered for her, she's inspired me to become a better person in every aspect of my life. Her writing makes we want to be more insightful. Her parenting makes me want to be more creative. Her friendship makes me want to be a better person in general. Jacki has turned her experiences with cancer into a positive somehow. She's turned the most rotten lemons into the sweetest lemonade. She's now a role model for health and I'm grateful to be able to share her with you. I recommend visiting JackiDonaldson.com to get her full story.

Fitz: Describe your original diagnosis of breast cancer and your life at that point.

Jacki: I found a lump in my breast while washing in the shower. I knew in my gut it was cancer. After a mammogram, ultrasound, and biopsy, I knew with absolute certainty. I had cancer. I was 34 years old, with a husband and two little boys, ages three and 18 months.

Fitz: What type of treatment did you undergo and for how long?

Jacki: I had a lumpectomy to remove my tumor and four lymph nodes. Then I had four doses of chemotherapy, six weeks worth of radiation -- I was zapped every week day for all these weeks -- and then a year-long targeted drug therapy with a new wonder drug that cuts the risk of recurrence by 50 percent. I also received physical therapy -- both surgery and radiation affect range of motion in the arm -- and talk therapy, and I took an anti-depressant for more than one year. My treatment began in January 2005 and ended in July 2006, just more than one year ago.

Fitz: You hired me as your personal trainer about 17 months ago. You said you wanted to "get strong." How were you weak?

Jacki: My body had been battered by both cancer and the treatment designed to save my life. I was fatigued, worn out, and without physical strength. I knew I needed to make a comeback. I just didn't know how. Then I found you.

Fitz: You were still undergoing chemotherapy once every three weeks for your first few months of training. Small things like lunges and strength training with tubes would leave you dizzy quite often, but you persevered. What kept you coming when you certainly were not required to?

Jacki: I believe the healthier and stronger I become, the less likely I am to develop cancer again. So I require myself to work hard. It's my way of controlling an unpredictable disease.

Fitz: You began training in April, 2006 and ran the entire Making Strides Against Breast Cancer 5k in October, 2006. You were the first survivor to cross the finish line as you ran every step of the way. As I finished a few steps behind you, I couldn't think of a more proud moment in my career. What did that physical accomplishment mean to you?

Jacki: It meant I really could run, not just around the block which I could barely do even before cancer, but for 3.2 whole miles. It meant that I was taking powerful steps against a disease that threatened to take my life. It meant I could keep up with you -- which is no small feat!

Fitz: You've now revamped your entire way of eating. Tell me about the changes you've made and the results you've experienced. You look really hot by the way!

Jacki: I love you! I've cut out all sweets, soda, and red meat. I eat low-fat, low-sugar foods and lots of fruits and veggies. I drink only water. I've cleared my kitchen of butters, oils, dressings, and more. Results? I've lost 15 pounds, 10 of which crept up on me during treatment. I'm leaner, firmer, and so much happier in my slimmer body.

Fitz: What's on your iPod?

Jacki: I'm about to change my music line-up so I can run in this year's Making Strides with some new inspiration, but right now, I'm listening to Melissa Etheridge, Sister Hazel, old Gin Blossoms, and more.

Fitz: What's your favorite healthy food?

Jacki: Fruit salad. I'm eating one right now.

Fitz: What's your favorite not-so-healthy food?

Jacki: Right now, it's Teddy Grahams. I bought them for my kids because they are semi-sweet, with not so much sugar, and I can't keep my hands out of the bag. I'm not buying them anymore.

Fitz: What do you do for exercise now?

Jacki: Run -- when I don't have shin splints. And walk, mostly up and down hills. And push-ups, planks, sit-ups. Sometimes squats and resistance band stuff too.

Fitz: Your husband John has adopted your healthy eating habits, and he looks spectacular too. How is all this gorgeousness changing your lives?

Jacki: Mostly, we feel so much better in our skin.

Fitz: You fight so hard to raise money for Breast Cancer research and treatments. What do these donations mean to you?

Jacki: Remember that year-long drug therapy I described above? Herceptin is the name of the drug, and it was approved for use for women like me -- with early-stage breast cancer -- one month before I would have missed my opportunity to receive it -- it has to be administered no longer than six months after chemotherapy, and I was five months out. It might be the one thing that saves my life, and I am so thankful for perfect timing. I wouldn't have ever been the lucky recipient of this drug, though, had money not been raised to research and test this drug. Raising money is my way of repaying a favor or sorts.

Fitz: You've raised the most money of any individual three years in a row at the annual Making Strides Against Breast Cancer 5K in Gainesville, Florida. How do we donate on your behalf for this upcoming event on October 20th, 2007?

Jacki: Just click here and you'll land at my personal donation page.