I like to exercise. I like the challenge, the sweat, the mental release, the physical results, the time to myself. I like everything about it -- practically.

What I don't like about exercise is the pressure to accomplish the feat over and over again for the rest of my life. For years, the pressure I put on myself was palpable. I thought about exercise all the time. I stressed about what to do and when to do it. I fought to convince my kids to climb into a double stroller long after they were too big to sit comfortably in the wobbly contraption and when I found time to exercise all by myself, I struggled with an overwhelming desire to spend quality time with my little boys. I felt rushed to complete my workouts -- because my kids were waiting, dinner was waiting, work was waiting.

I was faithful about exercising -- even through treatment for cancer -- because of my self-induced pressure and despite the stress and worry it caused me. And then something happened.

It was probably a combination of cancer and my relentless push for physical fitness that caused my body to crash. I became tired and exhausted and could barely lift my legs to walk up the neighborhood hills I typically conquered with ease. My oncologist told me to stop, to give my body a break, to let go of my high expectations. He advised me to exercise two to three times per week -- and that's it.

It took some time but I have finally embraced this approach. I have abandoned schedules and routines and plans and I now exercise when I can, when it fits into my day, when I really want to do it. My fitness trainer friend Fitz, a new blogger on That's Fit, wrote in one of her first posts that we should all stop trying to get fit -- and we should just do it. "Don't wake up tomorrow with the idea of trying to go for a jog," she says." "Get up and go for a jog! Put it in your planner and make it happen."

Fitz might not like my approach, but I have stopped putting exercise on my planner. For me, this works. It takes away the pressure, the stress, the worry. It gives me peace to confront each day free of exercise anxiety. It makes me happy to tackle exercise on my own terms, without some preconceived notion of what I should be doing.

I should share something else about myself. I am a perfectionist. I want everything to be just right. As child, I tore up drawings that may have had one stray mark. I wouldn't leave my house for school until my ponytails were flawless. My house is clean and neat, my toenails are pedicured and painted, my hair is styled just so. Perfectionism, sometimes just a step away from obsession, can be an unhealthy practice. And for me, exercise was becoming an emotionally unhealthy endeavor.

I am confident my perfectionist tendencies will keep me in the exercise loop for all of time. Just knowing I need exercise will propel me to conform. But I must say that I am so relieved to have let go of some of my exercise burden.

I like exercise. I really like it. And today, when I ran three miles -- because I had the time and felt up for the task -- it was refreshing, empowering, cleansing. I think it's the lack of pressure that allowed me to lose myself in the moment today. For me, letting go of exercise has lightened the load.

I have made on-line visits to Wikipedia many times -- mostly for information on cancer. And what I've found are endless resources, thoroughly-covered topics, and material that is easy to read and easy to understand. Wikipedia, a free on-line encyclopedia -- where readers can participate in editing and changing content -- offers information on just about any topic you can imagine. And here are seven stops you might make in pursuit of cancer-related material.

For fitness, the practice of yoga promotes balance, flexibility and strength. America loves yoga, according to a survey conducted by the Yoga Journal. The top four reasons given for the interest in yoga were: flexibility, stress reduction, strength, fitness and conditioning. As yoga grows in popularity, it is also becoming Americanized, and there are a number of hybrid yoga practices springing up like: Acu-yoga, Yogilates, Disco Yoga, Hip-Hop Yoga, Punk Rock Yoga, Aqua Yoga, Doga (with your dog), Yoganetics, Soul FlowYoga, Freestyle Vinyasa Flow, Sonic Yoga, Yogic Arts (yoga combined with martial arts) and Nude Yoga -- which is a good thing, or a bad thing, depending on who you are asking.

Of the survey participants who were asked , these were the top four good/bad statements made to the increasing popularity of yoga in this country:

• "Americans need to recognize that practicing yoga doesn't conflict with mainstream religious values."
• "The commercialization of yoga is a good thing. It attracts many more people to the practice who otherwise wouldn't know about it."
• "Innovation is good for yoga. The many different styles that are evolving make the practice accessible to everyone."
• "Yoga in America is becoming too commercialized."
  

Is yoga the current fitness fad? Maybe. Will it fade in popularity? I suspect it will for those who flitter from one new trend to the next new trend. But, for example, there have been years of research into the potential benefit of yoga in improving the quality of life for cancer patients and survivors, and the National Cancer Institute has recently awarded M. D. Anderson a $2.4 million dollar grant to study the benefits of Tibetan yoga for cancer patients and survivors.

According to M. D. Anderson researchers, cancer and its treatment are associated with considerable distress, impaired quality of life, poor mental health and reduced physical function. For thousands of years, Tibetans have been practicing a form of yoga that might help reduce treatment-related side effects that accumulate over time for cancer patients. As research continues, yoga may become an accepted alternative and complementary therapy incorporated into mainstream medical practice for the treatment of disease and improving health.

Realistically, I am not certain that some of the trendy hybrid forms of yoga will endure over time, but the yoga that has been around for thousands of years is here to stay.

Stress is not good. Long-term stress can suppress the immune system. Part of cancer prevention is supporting a healthy immune system so it can do the job of stopping cancer before it has a chance to develop into disease.

Whether stress is related to work or family life, most of us experience too much stress in our daily life. Why the same events will cause some people stress and not others, or why the same event can cause us to experience stress at one time but not seem to bother us as much at a different time, is largely based on our perception of the event and how we define what is happening.

One of the best ways to escape stress? Never personalize what is taking place. Easier said than done, but with practice, it works in reducing the amount of stress and the number of times you experience stress in a day. Still, easier said than done.

During my chemotherapy for breast cancer, I received the drug Adriamycin. Adriamycin is toxic and harsh and so powerful that when it makes contact with the skin it can cause a severe burn. How this drug cycled through my body without singeing my veins, I am not sure. Somehow, I survived it and can think back on this drug that is often called The Red Dragon.  It is wicked and fierce and unkind -- yet lifesaving as well.

The word dragon conjures up various images for me. I can clearly visualize the red liquid that dripped into my body many months ago with the purpose of attacking cancer cells. I also picture toy action figures that often cover my living room floor -- my five-year-old has a current love for dragons, and we have all shapes and sizes at our house. And lately, when I think of dragons, I see women in boats -- powerful women practicing the ancient sport of dragon boating.

I know women who participate in this sport through Team Survivor -- a group that provides free opportunities for physical fitness for women with cancer. And I just learned about Hope Afloat, Philadelphia and Pennsylvania's first breast cancer survivor dragon boat racing team.  With a mission of challenging their limits and not limiting their challenges, these women strive to awaken the dragon within through hope, support, and adventure.  This floating support group has been in existence since 2001 and welcomes all women with a history of breast cancer. Weekly practice, monthly meetings, and racing keeps these women in good shape and in good spirits. Go team!

Yoga can promote a greater sense of well-being, peace of mind and help cancer patients sleep more soundly, according to previous studies. Can Tibetan yoga relieve the side effects of chemotherapy? The National Cancer Institute, NCI, is interested in finding out and has awarded the University of Texas M. D. Anderson Cancer Center in Houston $2.4 million dollars to continue research to determine if practicing Tibetan yoga can minimize chemotherapy side effects for  breast cancer patients as they undergo treatment. Tibetan yoga involves practices like controlled breathing, mindfulness and visualization. Once shrouded in mystery and considered a secret yoga practiced only by Tibetan monks, it is less known in the West than yoga practices from the Indian tradition, such as hatha yoga.

According to Lorenzo Cohen, Ph.D., director of the Integrative Medicine Program at M. D. Anderson, while the study is designed to look at improvements in quality of life, it could be that Tibetan yoga offers health benefits as well. "Theoretically, if the Tibetan yoga intervention is found to decrease the patient's stress level, it could have an impact on their immune system," Cohen says. "There is extensive evidence showing that stress suppresses cell-mediated immunity, a component of the immune system involved in tumor surveillance. Tibetan yoga also might have an impact on a patient's hormonal activity."