You Can Beat Cancer! is a weblog written by a medical doctor specializing in public health and epidemiology.

The author tell us -- Cancer is certainly curable in the early stage, and in late stage, there are many available treatments to prolong their lives and also to let them have a good quality of life. Do not be despair. Ask your doctor for more information on the treatment options.

The blog is designed to teach readers the latest in cancer treatment. You can find articles about prevention, treatments, vaccines, new advances, insurance issues and much more.

Left-handed women under the age of 50 are more than twice as likely to develop breast cancer than those who are right-hand dominant.

What?

Yep, that's what a new study reveals.

This left-handed conclusion, published in the journal Epidemiology, comes from the study of 12,000 women in the Netherlands whose medical histories were followed for 13 years. Discounting all other factors -- lifestyle, environment, and other disease -- left-handers came up with a risk of breast cancer 1.39 times that of right-handers. For pre-menopausal women, the figure climbed to 2.41.

We're not even 11 days into Skin Cancer Awareness Month, and already my awareness about the disease has been raised several times.

Today, I learned that measuring the amount of melanin in a strand of hair can predict a person's risk for melanoma. It's all detailed in the May 15 issue of the American Journal of Epidemiology. And the study leading to this new conclusion -- that the amount of melanin in hair indicates an individual's skin type -- is quite interesting.

Think about this:

Researchers involved in a large skin cancer trial measured 2,3,5-pyrroletricarboxylic acid (PTCA) levels of 98 subjects with melanoma and 98 subjects without melanoma. They found the subjects with a PTCA concentration below 85ng/mg had more than four times the risk of developing melanoma.

We all know breast cancer strikes women -- a lot of women -- but about 1,700 men also develop the disease each year in the United States. And while their risk of diagnosis is much more hopeful than the reality facing women, men with breast cancer face their own version of a not-so-rosy reality.

According to researchers at the University of California, Irvine, men treated for breast cancer face a very real chance of getting cancer again. Their study found that 11.5 percent of men with breast cancer develop second primary cancers -- mostly in the breast, stomach, and skin -- within two months following initial treatment.

"Even more disturbing, we found that men with breast cancer are diagnosed with later-stage disease and that patients with onset of the disease at a young age are even more likely to develop a second cancer," said Hoda Anton-Culver, chief of epidemiology in the UCI School of Medicine.

In light of these findings, researchers recommend men with breast cancer be closely monitored for a second onset of cancer.

Nearly a decade ago, women in Long Island began to worry about their high rates of breast cancer. So they advocated and lobbied and pushed until a public law was passed that allowed for the creation of the Long Island Breast Cancer Project. Funded by both the National Cancer Institute and the National Institute of Environmental Health Sciences, great data has emerged from this project -- like the data linking breast cancer and household pesticides.

Although much research has linked cancer with pesticides in work and industrial settings, few studies have investigated what these chemicals can do in households -- until now, thanks to research conducted as part of The Long Island Breast Cancer Project.

Published online in the December 13 American Journal of Epidemiology, researchers found an association between lifetime residential pesticide use and breast cancer risk in a sample of 1,508 Long Island women diagnosed with breast cancer between 1996 and 1997. These women were compared to 1,556 random controls. All women were asked to self-report their pesticide exposure and to offer blood samples for the study of organochlorine compound levels -- found in lawn and garden products.

As expected, researchers found an increased breast cancer risk for women whose blood samples showed the highest levels of organochlorine compounds. They also found it hard to find women who did not use lawn and garden pesticides to some degree.

Use of household pesticides has infiltrated our society, says researcher Susan Teitelbaum, assistant professor in the department of community medicine at Mount Sinai School of Medicine in New York, who reports she is happy to see a movement toward use of alternative methods, like integrated pest management.

Teitelbaum has just one recommendation as result of this study. It's quite simple really -- stop using pesticides.

Eleven is the magic number.

Eleven pounds of lost weight can reduce the risk of an advanced form of prostate cancer, according to researchers from the American Cancer Society and the Duke University Prostate Center.

Researchers, who tracked the weight of 70,000 men between 1982 and 1992 and then followed them until 2003, found men who lost more than 11 pounds had a lower risk of developing prostate cancer than men whose weight remained the same.

Studies have long shown obese men are at greater risk for prostate cancer. But this study, published in this month's Cancer Epidemiology, Biomarkers & Prevention, is the first to indicate that recent weight loss can decrease risk by roughly 40 percent.

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.

Hair colorist Jason Backe hopes hair dye does not cause cancer -- because he is covered in it every day in the Manhattan hair salon where he works. But the topic of hair dye and cancer has been on his mind lately -- because he has been fielding questions from clients about the possible link between the two ever since an American Journal of Epidemiology study was released and caused nationwide panic about hair dye upping the odds that women might contract lymphoma -- a cancer of the lymphatic system. But on Thursday, a New York Times article summed up opinions from both experts and hair stylists, revealing that most everyone believes this panic is not necessary.

Recent studies found that those who had ever used hair dye were 1.19 times more likely to get lymphoma than those who had never used it. Those who colored their hair before 1980 -- before then-questionable chemicals were removed from hair dyes -- were 1.39 more times likely to get the disease. Ann Curry on the Today Show said, "These are scary numbers," but Dr. Barnett Kramer, associate director for disease prevention at the National Institute of Health said, "Compared to risk factors for other diseases, those numbers are very small." Smoking makes people 10 to 60 more times likely to get lung cancer. According to Dr. Joseph K. McLaughlin, president of the International Epidemiology institute, if these numbers are true -- and that's a big if -- it would mean that using hair dye may present a remote risk to your health. But it would still be less risky than crossing a street, driving a car, not wearing a seat belt, or drunk driving.

I am not exactly in a panic about this whole issue. But before I heard the news about hair dye and cancer, I did dye my hair -- once. And I don't think I will do it again -- even though the risk may be small -- because I have already had cancer. And any amount of risk associated with any type of cancer is just something I don't want to mess with.

I woke yesterday morning to voices on the Today Show telling me that the use of hair dye is linked to incidences of lymphoma -- a general term for a group of cancers that originate in the lymphatic system. I know I've heard in the past about the possible link between cancer and the chemicals that add color to hair -- but the connection has never been revealed as very strong and the topic did not ever apply to me so I filed the information in the back of my mind. But now, it appears the link may be stronger than originally thought -- and I recently dyed my own post-chemo brown hair -- so I listened more intently this time and learned about the study that implies that touching up my roots may not be a wise practice.

The results of a European study, appearing in the July 1 issue of the American Journal of Epidemiology, reveal that roughly 10 percent of lymphomas in women could be caused by the use of hair dyes. The data suggest a small increase in risk -- and clearly more research is necessary -- but what researchers have found is that for the women who have dyed their hair more than 12 times, the risk is highest. And those who colored their locks before 1980 have the greatest risk. Since 1980, chemicals thought to be cancer-causing were eliminated from dyes -- although it is still not definite whether or not current hair dyes are risk-free. It is definite, say researchers, that further study of this topic is important. In the meantime, I think I will let my artificial reddish chestnut hues fade away while I enjoy the plain brown hair that covers my once-bald scalp.

After two days of meeting to discuss the safety and effectiveness of multivitamin and minerals supplements, MVMs, a 13-member independent panel of experts in the fields of food science and human nutrition, biostatistics, biochemistry, toxicology, geriatric medicine, family medicine, pediatrics and pediatric endocrinology, cancer prevention, epidemiology, disease prevention and health promotion, and consumer protection made the following observations and recommendations.