Stomach cancer is hard to detect. It has no symptoms in its early stages, and there is no effective screening to detect its presence. So early detection and early treatment for this disease -- that attacks 800,000 people worldwide -- are hard to come by. In Taiwan, stomach cancer is the fifth most common cancer and the focus of study for researchers working to devise a method for detecting stomach cancer in its infancy.

A team of researchers at National Taiwan University Hospital have discovered a toxic factor -- GroES -- that causes stomach cancer. And they have discovered that a simple blood test will show either a positive or negative result for this substance, leading to immediate endoscopic exams for patients who may be at risk for stomach cancer. The test to identify GroES has already achieved a 65 percent accuracy rate.

Apparently, if the human body is infected with GroES, it produces antibodies to the factor and can cause chronic inflammation of the stomach, causing cells to rupture and proliferate. Long-term inflammation can cause stomach cancer. Researchers say about 45 percent of adults in Taiwan are infected with GroES -- and one percent will go on to develop stomach cancer.

Right now, patent applications are underway in the United States, Japan, and Taiwan. Once a kit is developed, a single drop of blood will be all it takes to determine the risk for stomach cancer.

In woman with fake boobs has real health worries, Busty and bothered wrote to women's medical health expert Dr. Judith Reichman asking if her breast implants will rupture during a mammogram or if there is a possibility that the implants will obscure signs of breast cancer. Dr. Reichman, who is NBC Today show's medical contributor on women's health, responded that both are valid concerns for the over four million women who have had breast augmentation. According the doctor, there were only 41 cases of implant ruptures during mammography reported to the U.S. Food and Drug Administration between June 1992 and October 2002.

As to breast implants obscuring mammography readings, implants can cause a 15 to 50 percent decrease in the mammographically visualized breast tissue and several studies have reported false negative mammograms -- those that missed the cancer -- in 12 to 67 percent of women with breast implants. So, it's a bit of good news and bad news but women with breast implants should not put off having mammograms because of fear that the implants will be damaged or that there is no point in having a mammogram because there is a possibility the implants will obscure the early signs of breast cancer.