I'm dizzy, light-headed, over-heated and just plain worn out after my workout this morning. Why? Because I overdid it.

I've been so focused on running from cancer by eating right and strenuously exercising -- research says it take five hours of vigorous exercise per week to keep breast cancer away -- that I drove myself to depletion this morning. It hit me when a wave of dizziness came over me in the midst of my outdoor workout. My body felt heavy, my strength disappeared, and it took every ounce of energy I could muster to put one foot in front of the other so I could get home. I suspect it was a combination of dehydration -- I didn't take water with me -- and heat -- it's really hot here in Florida -- and pushing myself too hard. The fact that I feel a bit under the weather didn't help either, I'm sure.

My body spoke to me today. And it's got my attention.

Let's face it, there is no "secret" to losing weight. It's simple -- bank less calories than you spend and the weight will come off. You don't need to take pills or buy into the latest diet craze. Common sense is all you need.

I spoke with my oncologist the other day about my own weight loss -- I have lost nearly 14 pounds since the beginning of May, thanks to a no-sweets, low-sugar, low-fat, water-only diet with an emphasis on high fruit and veggie intake. Now this is no temporary diet. This is for life. My goal was never to lose a bunch of weight and then go back to eating junk -- I just wanted to shed a few cancer treatment-induced pounds while embracing a brand new healthy lifestyle.

My doctor was proud of my progress and shared his too -- he's lost eight pounds by cutting 500 calories from his diet each day. It sounds like a lot but this can be accomplished by cutting down on portions, giving up soda, and ditching high-calorie snacks. Observing the physical changes we both had made, he announced to the medical students in the room with us at the time that weight loss is not so hard -- well, maybe mentally hard, but not physically. He talked with his students about how to advise overweight patients -- surely a large percentage of people they see -- and reminded them of this formula: take in less than you spend. They nodded in agreement. And we moved on to other topics. There really was nothing more to say. Simple, I tell you. Give it a try.

"What one thing did you learn at Canyon Ranch?" my dad asked me the other day. We hadn't yet fully discussed my April trip to this Arizona health and healing destination and so he wanted to know what I had absorbed during my four days in the desert. I couldn't possibly name just one lesson I'd learned. But I could sum up all of my lessons in one broad category. This is what I told him: I learned how to change my lifestyle.

I learned how to change the way I live while at Canyon Ranch. I've since come to realize this is what most of us need to do to rid ourselves of our bad habits, our unhealthy ruts. There's nothing temporary about getting healthy. It's takes a lifetime commitment. I lacked commitment before Canyon Ranch. I have commitment now.

I'm committed to eating right, exercising, minimizing stress, processing my anxiety, focusing on family, prioritizing, and so much more -- all because of cancer and what I learned at Canyon Ranch.

In my post last Sunday, I asked whether or not we can change our bad habits. I concluded that we can make that decision and live healthier lives. If we are to live healthier lives, though, how far should we take this new healthy living?

My definition of camping is when the hotel doesn't have room service. I believe chocolate is an essential food group. I like the smell of body lotion. I have to force myself to exercise. If I am to commit to a healthy lifestyle that will protect me from cancer and other diseases, will I have to turn into a vegetarian marathon runner who doesn't use soap? I think that is the fear we all struggle with when our doctors or society tells us we have to be healthier. Do we have to go so far that we are not recognizable anymore? Is it worth it to make small changes?

Studies say that a few small changes can really add up. Three ten-minute walking sessions every day and you are keeping your heart healthy. Cutting the fat off your meat and eating even one serving less of meat a week can have health benefits. Doing more does not even always mean more health benefits. Researchers at the University of California, San Diego, concluded that eating more than the recommended five servings of fruits and vegetables does not give you any greater protection against cancer than the recommended daily servings. To me that is good news, because it means that I do not have to go overboard in my efforts to live a healthier life. (One statistic to remember on this though: Only 23% of Americans actually get five servings of fruits and vegetables a day.) We can all do more to be healthier, but we do not have to eat only green stuff and chant all day long in order to reap any benefits. Is there a small change that you can make to live a healthier life?

When my father was diagnosed with end-stage esophageal cancer, I'll never forget what a (very) distant acquaintance who lived in the same apartment building said to me. I ran into her in the hallway and she said that she had heard about my dad's illness and she was very sorry. Thank you, I said, so am I. Then she asked the question.

"Did he smoke?" Thud went my heart, as it sank.

I believe there is a difference between policy and people. As a nation we should do all that we can from a public health perspective to reduce the risk of cancer, including encouraging and offering incentives to people to improve their health through lifestyle changes, including quitting smoking.

However, when it comes down to the individual level, to a real-life person, does it really matter if someone who is afflicted with cancer puffed away or ate crummy food or drank themselves silly? Do we still not hope and pray for their recovery? Do we not mourn them if they die?

Back to the question. The one stopped me in my tracks as I acted my way through my day in the fog of anticipatory grief.

"Did he smoke?"

Looking back, maybe she was just curious.

Or maybe she was seeking reassurance.

Reassurance that the monster that is cancer wouldn't happen to her, wouldn't kill someone she loved.

That I couldn't give her, regardless of my answer.

According to a recent study published in the July issue of Harvard Men's Health Watch, lifestyle changes can help men with newly-diagnosed prostate cancer of low to moderate grade that is localized to the prostate gland.

Half of the 93 men who were in the trial were assigned to a lifestyle program, and others were not. The program included an ultra-low-fat vegan diet, supplements including soy, fish oil, vitamin E, C, and selenium, walking 30 minutes a day for six days of the week and a stress reduction program of an hour a day including yoga, stretching, breathing and meditation.

Within a year, a small but statistically significant difference was evident in terms of average PSA. The average PSA in the lifestyle change group fell while the PSA in the untreated men increased.

While more research is needed before such lifestyle therapy can be recommended in a clinical setting, the journal notes that men with prostate cancer may not want to wait, particularly since these measures are beneficial for general health anyway.

Who knows which pieces of cancer information floating around out there are actually true? I don't. Do cell phones cause cancer? Some say yes, some say no, I say I'm confused! Luckily, I happened upon this Discovery Health article that highlights a variety of myths and then offers the lowdown on each one. Here are seven of them:

Myth #1. There is currently a cure for cancer, but the medical industry won't tell the public about it because they make too much money treating cancer patients.

Chalk this up to urban legend. And consider this: doctors, laboratory scientists, and their families and friends die of cancer at the same rate as everyone else in the United States. How about this: medical breakthroughs happen all the time and are quickly applied. Think about antibiotics and vaccines -- like the polio vaccine -- that have transformed health care. How about this? Not too long ago, less than one in 10 kids with leukemia survived 10 years. Now, the cure rate is nearly 80 percent. Seems like progress to me.

In this Worthy Wisdom series, I have been spouting off all sorts of grand ideas about health and healing, diet and nutrition, exercise and fitness. What I share all comes from Canyon Ranch in Tucson, Arizona. I spent four days there. I plan to spend a lifetime practicing what their experts preach.

Canyon Ranch worked for me. I bought into every one of their healthy living approaches and for the two months since I've departed this desert destination, I've done just about everything right -- the eating, the exercising, the de-stressing. And as I sit here eating a bowl of red raspberries instead of a bag of chips and handfuls of M&Ms, I think it's only fair I make a confession.

I've made many attempts at changing my lifestyle. I've gone without sweets several times in my life, only to later reintroduce them into my daily routine and inevitably go way overboard on my consumption. The same goes for soda. There have been times when I've obsessed about exercise. And times when I've let it go altogether. My stress levels have been up and down and all around. I've searched long and hard for the motivation to change, to do better, be better, feel better. It took cancer to push me over the edge, toward positive and long-lasting change.

Are you a night person or a morning person? I used to be a night owl but years of getting up early have destroyed that--which is what my parents said would happen--and nowadays I have trouble staying up past 10. This is a good thing, apparently, because being a night owl can up your chances of cancer.

Why? Perhaps it's the lifestyle choices of night owls, who tend to be heavier, less active and without children. Or perhaps it an increased exposure to artificial light -- these days, we can avoid sunlight altogether, something that wasn't possible 100 years ago.

What do you think?

A bundle of scientific reports indicate more than 200 chemicals, found in the air and in consumer products, cause breast cancer in animal tests.

Researchers report in an American Cancer Society publication that reducing exposure to such compounds could prevent many women from developing the disease.

Family history and genetic make-up are responsible for only a small percentage of breast cancer cases. Environmental and lifestyle factors, such as diet, are most likely involved in the majority of cases, say experts.

If your mom was one to harp on you about eating your vegetables, it was likely because she knew how good veggies are for the body. Moms everywhere now have research on their side.

A large study of 500,000 American retirees has shown that increasing consumption of fruits or vegetables is enough to reduce the risk of head and neck cancer. Specifically, eating six servings of fruit and vegetables per day per 1,000 calories cut the risk of these cancers by 29 percent compared to eating one and a half servings.

"It may not sound like news that vegetables protect from cancer, but there is actually some controversy in the literature," says Dr. Alan Kristal, associate head of the cancer prevention program at Fred Hutchinson Cancer Research Center in Seattle.

Clearly, diet plays a role in cancer. Experts believe that up to two-thirds of all cancer cases stem from lifestyle factors such as smoking, lack of exercise, and diet. So keep crunching those carrots and growing those green beans. You'll make your momma proud.

If eating junk food and watching television lead to obesity, a sedentary lifestyle, and a road marked by diminished health and increased illness, then kids living in Britain are about to get a whole lot healthier.

Think about this:

According to the March 19, 2007 issue of TIME magazine, British broadcasting regulator Ofcom will phase out all commercials on children's programming that promote junk food containing high fat, sugar, and salt.

The ban will begin at the end of the year.

The experts at Canyon Ranch resort and spa know what they're talking about when it comes to health and happiness. They make a living off their expertise, in fact. But they're not stingy when it comes to sharing their know-how, and on the Canyon Ranch website, they offer us all a chance to better our lives.

I promised in an earlier post to share more of what the Canyon Ranchers have to say -- so here are seven more healthy habits you just might want to embrace.

To Carb or Not to Carb

Canyon Ranch has watched "fad" diets come and go, never falling for their quick, easy-fix mentality and consistently advocating for balance, moderation and basic good nutrition. In recent years, some diets have forsaken whole grains for foods rich in protein and essentially free of carbohydrates. Whole grains, which are carbs, have always been a vital part of good nutrition. And while removing high-carbohydrate foods from your diet may initially help you lose weight faster, over time their absence can negatively influence your health.

Making Time for Time

People take classes to learn time management, they rely on the latest technologies to make the most of it and budget time as carefully as their money. Still, when it comes to health care, you may find yourself in a time crunch. Fortunately, Carl Pratt, managing director of the Canyon Ranch in Lenox, offers a timely solution: The 90-Minute Program. "It really only takes 90 minutes a week to stay focused on maintaining a healthy lifestyle. If you aren't willing to dedicate 90 minutes, you aren't willing to take care of yourself, and you need to accept that fact," says Carl. Carl breaks down the 90 minutes per week as follows:

• 15 minutes of planning for "mindful eating"
• 45 minutes of exercise (15 minutes, three days a week)
• 30 minutes of relaxation (five minutes, six days a week)
  

Commuting Bliss

When you change your mindset and treat commutes as a transition time for relaxation or education by listening to music or books on tape, your daily drive becomes a worthwhile experience. "We all see commutes as inconvenient, and we need to think of them as something valuable. Remember, the ultimate removal of commute time is not what people want. Otherwise, we would go directly from birth to death and skip everything in between. If you can't enjoy the commute -- and indeed, some are more difficult than others -- you are simply losing part of your life," says Robert Rhode, Ph.D., clinical psychologist at Canyon Ranch in Tucson.

Family Bonds Tied to Well-Being

Even painful family connections can be a significant part of personal growth. Learn to feel reverence toward yourself even as you feel pain. This connects you with your humanity and your ability to give and receive love. How to get comfortable with painful memories? Relax your body and allow yourself to feel emotions -- anger, pain, sadness -- while maintaining a positive attitude toward you.

An Attitude of Gratitude

Being thankful each day for the good things in your life and the ability to appreciate what you have rather than what you do not have is an important aspect of emotional health and well-being.

Think Big

One key to spiritual well-being is to get outside yourself with activities such as volunteering or contributing to worthy causes."Get involved with others and become committed to something greater than yourself. You start worrying about the greater good and you feel better about yourself," says Evan Kligman, M.D., at Canyon Ranch in Tucson.

Not a Morning Person? It's OK

Giving yourself a workout boost first thing is great for some, but an early morning workout may not be for everyone. Phil Eichling, M.D., sleep expert at Canyon Ranch in Tucson, encourages people with sleep problems to put off their workout for later. He says to enhance sleep, the best time to exercise is usually late afternoon. And people who have cardiovascular issues or certain other health concerns may also want to ease into the day before they strap on their running shoes or cross trainers.

I just received my University of Florida alumni magazine and right smack in the middle of the publication is a story about cancer. The gist of the article is that there's an explosion of effort and activity in cancer research at this institution -- much like all over the nation -- and featured are all sorts of new cancer techniques and strategies and treatments. But one thing in particular stood out to me. What I read -- in the space of just two short sentences -- jumped off the page and really made me think.

This one thing is what I am about to share, and I'm calling it my Thought for the Day. It's a great morsel of information -- short, sweet, easy to digest, and perfectly powerful -- and so I invite you to read on, let this string of words sink into your mind, think about it over the course of the day, and then determine how you might use it in your own life. And then come back tomorrow, when another Thought for the Day will await you.

Think about this:

More than half of all cancer deaths can be prevented by maintaining a healthy lifestyle. Poor nutrition, obesity, physical inactivity, and cigarette smoking together account for 63 percent of all cancer deaths.

Blogger Kristina Collins wrote on February 11 about three great steps for reducing the risk of cancer. Her suggestions -- eat well, get fit, and stop smoking -- are such good tips and could certainly account for major health changes in those who heed this advice.

Each one of these recommended lifestyle alterations is a major undertaking. And if you're like me and find big, swift, sweeping changes a sure recipe for defeat, then this short to-do list may seem a bit intimidating. So I'd like to offer a bit of my own advice for accomplishing these health feats -- take baby steps.

Kristina has taken baby steps. She first quit smoking -- I'm not sure there's anything small about this success, however -- and now she's taking on membership at a gym. Cutting down on red wine comes next, she says, as she pursues a life driven by health.

I have just recently taken a baby step myself. I stopped drinking soda -- or pop as I called it before relocating from Ohio to Florida. I'd known for some time I wanted to rid myself of the sugar that comes packaged in my favorite drinks -- Dr. Pepper and root beer -- but for some reason, I was dragging my feet when it came to giving up this vice. Yet I did it. I stopped drinking soda, replaced it with water, and now have no desire for sugary drinks of any kind.

I am a creature of habit. I know this because I spent years drinking only water. But when cancer struck, I turned to the carbonation of soft drinks to settle my upset stomach. With time, my stomach stopped bothering me. But I didn't stop drinking soda. I kept drinking it for no other reason than pure habit. And when I convinced myself this practice was not necessary in my life, I cut it out.

Perhaps I'll tackle chocolate next. Or exercising more. Who knows. I'm just happy I accomplished one small task. And I hope you'll consider taking baby steps in your pursuits for better health. Just remember, we didn't hop up one day and start sprinting in infancy. It took years to fine-tune our ability to run on our own. And it may take years to carve out a healthful way of living.