An independent report revealed recently that women employed at the Toowong site of ABC's former Brisbane studios in Australia were six times more likely to develop breast cancer than other women.

The site has been vacated. And the hunt is on -- for the cause of this unusually high rate of the disease.

No luck yet -- but new findings, while not definitive on what has caused this cluster, do indicate exposure to electromagnetic fields (EMF) is not a factor -- because the low frequency fields at the site were typical of other workplaces and residences, without any such cancer cluster.

Further testing will take place in an attempt to solve this on-going mystery, chronicled in the posts that follow.

ABC journalists walk out over cancer cluster concerns
Breast cancer cluster closes ABC studios in Australia
Connecting the clues in Australia cancer cluster

Pancreatic cancer is one of the deadliest forms of cancer. So any bit of progress on the pancreatic cancer front is a big deal. And researchers are happy to report they've found a chemotherapy drug that can help patients who have received surgery prevent a return of the disease for a longer period of time.

In a German study, participants who received Gemzar, or gemcitabine, lived an average of 13.4 months without their cancers coming back. Participants who did not receive the drug lived without the disease for 6.9 months. While the findings of this study may seem modest, they really are quite encouraging because pancreatic cancer is such a rapid killer, and patients with this disease have the worst chances of recovery.

This study, published in Wednesday's Journal of the American Medical Association, brings hope for the mere 20 percent of pancreatic cancer patients who are candidates for surgery. While surgery is the best hope for a cure, the disease still returns in the majority of cases -- so Gemzar is surely worth a shot.

It should be noted that some study authors report financial ties to Gemzar drugmaker Eli Lilly and Co. Researchers, however, report the firm had no influence in design or data interpretation.

New research indicates when women and men have lung cancer of the same stage and receive the same treatment, women are more likely to survive.

Several studies extracting data from national cancer registries have shown that lung cancer survival is different for men and women. This study, published in the journal Chest, is the first to compare the sexes when staging and treatment are identical.

It took seven years to follow 1,085 patients with non-small cell lung cancer -- the most common type of the disease -- and at five years, 60 percent of women were still alive compared with 50 percent of men. Overall, female survival rates were consistently higher for all stages of the disease.

Researchers, who ensured there were no differences between the sexes in terms of race, other diseases, smoking history, lung function, and treatment, are not exactly sure why women fare better. But they speculate that women might respond better to chemotherapy.

What researchers do know for sure, however, is that these findings -- if given a chance -- could help improve the overall five-year survival rate for patients with non-small lung cancer by helping to locate new therapeutic options.

Double the hormone, double the risk. Or so says one study of older women who take hormone pills. When estrogen and testosterone are combined, women face twice the chance of getting breast cancer, according to a study of more than 70,000 nurses. This type of combination therapy may help with mood, libido, and bone density -- but the possible risk of breast cancer may just outweigh these benefits. These findings, published in Monday's Archives of Internal Medicine, add to the evidence that certain types of hormone supplements -- like estrogen-progestin pills -- increase risk of breast cancer, strokes, and heart attacks in women. Other research points to a link between breast cancer and high natural levels of testosterone.

Women's natural levels of estrogen and testosterone decrease with menopause. Use of supplements has climbed over the past 24 years, perhaps putting more women at more risk. Estrogen-testosterone pills are sold under the brand names Estratest and Estratest H.S. and appear on a Washington-based advocacy group's "Worst Pills" list because of breast cancer risk.

Close to 6,000 U.S. Food and Drug Administration (FDA) scientists were contacted by the Union of Concerned Scientists (UCS) and Public Employees for Environmental Responsibility (PEER) and asked to answer a 38-question survey in an effort to determine the scientific integrity of the agency. Of the scientists contacted, 997 participated in the survey. Following are some key findings of the survey released by UCS:

I have been a cheerleader for the breast cancer drug Herceptin ever since I began receiving it. I had my initial worries -- about an allergic reaction that I knew caused death within 24 hours for a handful of women and about possible toxicity to the heart -- but after faring well through my first dose and having now successfully completed my one year obligation to the drug, with no allergic reaction or heart damage, I have come to believe the Herceptin might just be the gem of a drug that the media says it is. Yet now I've read an article that makes me question what I really know about Herceptin -- and the studies that surround it and the statistics that back it and the messages sent out over the lines of mass communication to every day, non-medical people like me.

Michael Fumento is an author, journalist, and attorney specializing in science and health issues. And he has a lot to say about the Surgeon General's recent announcement that the second-hand smoke debate is over -- that second-hand smoke does in fact kill. Fumento believes that the debate is over means if you have your doubts, then keep them to yourself -- that the topic is not up for discussion any longer. But Fumento states that we should definitely have doubts -- about the effects of second-hand smoke and about what the Surgeon General has to say about it.

At the same Atlanta meeting of the American Society of Clinical Oncology where the breast cancer drug Tykerb was touted as perhaps the next wonder drug, findings were also released concerning chemotherapy and end-stage cancer. It seems that many patients in the last weeks and days of their lives are receiving chemotherapy -- when it is clear that there is no hope for survival. Perhaps patients don't want to give up and so they choose to fight to the very end. I think I would be hard-pressed to throw in the towel if a doctor thought I might benefit from continued treatment. Miracles do happen.

Doctors may be part of the problem, though, according to researchers. Patients don't want to give up -- and neither do doctors. But cancer specialists report that overly aggressive treatment gives false hope and puts people though unnecessary suffering and costly ordeals when hospice would be a more effective route. The purpose of hospice -- to help people die with dignity and in comfort -- is ineffective, however, when it's not used to its full potential. A large review of Medicare records showed in 1999 that nearly 12 percent of cancer patients died after receiving chemotherapy in the last two weeks of life. This was up from 1993 -- 10 percent -- and is probably higher today. These individuals could have been peacefully preparing for death and instead were suffering through the trials of harsh treatment.

The solution -- that must be implemented by doctors -- is a willingness to accept that there is a time to stop followed by an honest conversation with the patient whose cancer has spread widely and is incurable.

Another study presented at this Atlanta meeting revealed that some patients are not being offered newer treatments that might truly save their lives. New lung cancer treatments have extended survival from 20 percent at one year to 50 percent, for example. Yet only 11 percent of doctors in one Wisconsin study would refer such patients for treatment.

It would be nice to know for sure that one life is about to end, regardless of treatment, and to know that another might be saved because of treatment. And maybe one day -- when treating cancer is an exact science -- this will be a reality.

I went to a yoga class once -- it was when I was bald from chemotherapy because I remember wearing my wig and hat and hoping desperately that nothing would topple off my head while I stretched and balanced and folded my body into various positions. My bald head did stay covered and I was able to depart from the class with my dignity intact -- but for some reason, I never went back for another yoga class. Perhaps it was the difficulty I had relaxing while trying to manage the security blanket that masked my bare head. If I ever have to do it again, I think I will leave my hair and hat at home so I can give my undivided attention to the yoga experience -- which is becoming more and more recognized for its healing power.

New findings from a pilot study reveal that women going through treatment for breast cancer feel better, sleep better, and have less fatigue when they practice yoga. Side effects of treatment also seem to fade as a result of this ancient discipline. Lorenzo Cohen, a psychologist, led researchers at the University of Texas M.D. Anderson Cancer Center, and studied 61 women undergoing treatment for breast cancer. Thirty women were placed in a test group and took yoga twice per week for six weeks. The others did not take yoga. Once the study was complete, the participants completed questionnaires grading their physical abilities -- ability to lift groceries, walk a mile, and complete other physical tasks -- and also their feelings about fatigue, sense of well-being, and quality of life. The yoga group consistently scored higher on almost all physical components. No difference was found between the groups in the areas of depression or anxiety.

There is no doubt that exercise contributes to a healthy lifestyle in general. And it seems yoga is no different. Focused on meditation, imagery, controlled breathing, stretching, and physical movements, yoga is sure to benefit breast cancer patients. And I think I need to give it another try.